In brief
Brands use ten psychological tricks to make people spend more without noticing: the decoy effect, anchored prices, prices ending in .99, a premium item that makes the rest look cheap, supermarket layouts, artificial scarcity, free shipping thresholds, social proof labels like Best Seller, luxury packaging and subscriptions people forget to cancel. Knowing them helps you ask whether you are deciding or being manipulated before each purchase.
- At the cinema a medium drink at 6 euros exists mainly to make the 7 euro large size look like the obvious choice
- Supermarkets put milk and bread at the back, snacks near the registers and the most expensive items at eye level
- 40% of people keep paying for subscriptions they do not use because they do not want to cancel the automatic renewal
10 Psychological Marketing Strategies That Make You Spend Without Realizing It
Have you ever bought something and immediately asked yourself: “But why did I do that?”
Have you ever gone into a supermarket to buy just milk and came out with 20 more things?
It’s not a coincidence. Brands study consumer psychology to push us to spend more without us realizing it. From carefully studied prices to the layout of products in stores, everything is a well-orchestrated trap.
Let’s discover the 10 most subtle psychological strategies used in marketing to make you open your wallet.
1. The Decoy Effect: They Force You to Choose the Product They Want
Have you ever wondered why the medium drink costs almost as much as the large one at the cinema?
Here’s how the trick works:
- Small: 3โฌ
- Medium: โฌ6
- Large: โฌ7
At first glance, it seems convenient to choose the large drink because it costs only โฌ1 more than the average. But without the “medium” size, no one would have ever chosen the large!
This is the Decoy Effect, a psychological trick that leads you to choose the product that the brand wants to sell you the most.
2. Anchored Price: How They Fool You With Gigantic Numbers
When you see a product with a discount, your brain does not evaluate the real price, but focuses on the original price.
Example:
- Original price: 200โฌ
- Discounted price: 99โฌ
- Discount visible: -50%
The trick? Maybe the product has always cost โฌ99, but the higher original price makes you feel like the deal is unmissable.
Apple uses this technique when launching a new iPhone: it starts with an ultra-expensive model (like the Pro Max), and then makes the cheaper models seem a better deal.
3. The Power of Number 9: Why Everything Costs $9.99
There’s a reason why 99% of prices end in “.99”.
Example:
- $9.99 seems much closer to $9 than $10
- 199โฌ seems closer to 100โฌ than to 200โฌ
Our brain reads numbers from left to right and subconsciously perceives that the price is lower than it actually is.
4. The โPremium Priceโ Trick to Make the Rest Look Cheaper
When you go to a restaurant and see a 50โฌ dish at the top of the menu, itโs almost certain that no one will buy it. But the real purpose of that dish is to make the other dishes look cheaper!
- โฌ50 โ seems absurd
- โฌ30 โ seems a good deal
- โฌ18 โ seems cheap
Result? You’ll choose the โฌ30 dish, which is the one on which the restaurant has the highest profit margin.
5. Supermarkets Are a Maze Designed to Make You Buy More
Supermarkets are designed to make you walk as much as possible and fill your cart:
- Milk and bread are always at the back, so you have to walk all the way through the store.
- Snacks and candy are near the registers, encouraging you to make impulse purchases while waiting in line.
- The most expensive items are at eye level, while the cheap ones are at the bottom.
Every meter of the store you walk increases the chance that you buy something you didn’t want to buy.
6. The Psychology of Scarcity: “Last 5 Pieces Left!”
When you see texts like “Only 2 pieces left” or “Offer valid for the next 24 hours!”, your brain goes into panic mode.
This technique exploits FOMO (Fear of Missing Out), or the fear of missing out.
Amazon, Booking.com and Zalando are experts at this: they make you believe that if you don’t buy now, you’ll lose the deal forever. But often it’s just an illusion.
7. The Free Shipping Trap
Many e-commerce sites offer free shipping above a certain spending threshold.
Example:
- If you spend less than 50โฌ, shipping costs 4.99โฌ.
- If you spend 50โฌ, shipping is free.
Result? Add something to your cart just to get over the threshold, even if you didn’t need it.
8. The Power of the “Group Effect”
When you see a product with the words โBest Sellerโ or โTrusted by Thousands of Customersโ, your brain is inclined to trust it more.
In reality, who decides what is a “Best Seller”? Often, it is completely arbitrary information.
Amazon, TripAdvisor and Booking.com manipulate reviews and rankings to influence purchasing decisions.
9. The Ritual of Luxury Packaging
Luxury brands know that packaging matters more than the product itself.
When you open an Apple package or a Chanel bag, the way it is packaged creates a psychological experience of value.
The more the brand makes you feel special when opening the product, the more you will be willing to pay more in the future.
10. The Subscription Trick: You Forget and Pay
Services like Netflix, Spotify, and Amazon Prime make you sign up with a free offer, but then make you forget that the subscription is active.
40% of people keep paying for subscriptions they don’t use, just because they don’t want to cancel the automatic renewal.
Conclusion: Marketing is a Psychological Game
Every day, brands use invisible tricks to make you spend more. Now that you know them, you can use them to your advantage and not get ripped off.
Next time you buy something, ask yourself:
“Am I making the decision or am I being manipulated?”
Frequently asked questions
What is the decoy effect in pricing?
The decoy effect is a pricing trick where a deliberately unattractive option pushes you toward the product the brand wants to sell. At the cinema a small drink costs 3 euros, a medium 6 euros and a large 7 euros: the large looks convenient because it costs only 1 euro more than the medium, but without the medium option almost nobody would have chosen the large.
Why do prices end in .99?
Prices end in .99 because the brain reads numbers from left to right and subconsciously perceives the price as lower than it is: 9.99 dollars feels closer to 9 than to 10, and 199 euros feels closer to 100 than to 200. A related trick is the anchored price: a 200 euro product marked down to 99 euros feels unmissable even if it may always have cost 99 euros.
Why is there an expensive dish at the top of a restaurant menu?
The expensive dish at the top of a menu is a premium price anchor: almost nobody orders the 50 euro dish, but its real purpose is to make the other dishes look cheaper. Next to it, a 30 euro dish seems a good deal and an 18 euro dish seems cheap, so most people choose the 30 euro option, which is the one with the highest profit margin.
How does the free shipping threshold make you spend more?
A free shipping threshold makes you spend more by turning the shipping fee into a problem you can solve with another purchase. If orders under 50 euros pay 4.99 euros for shipping while orders of 50 euros ship free, many shoppers add something to the cart just to get over the threshold, even if they did not need it.
What is FOMO in marketing?
FOMO, fear of missing out, is the scarcity technique behind messages like Only 2 pieces left or Offer valid for the next 24 hours: they push the brain into panic mode so you buy immediately. Amazon, Booking.com and Zalando are experts at this: they make you believe that if you do not buy now you will lose the deal forever, but often it is just an illusion.
Last substantive revision: April 7, 2025.

