The definition
A loss leader is an item priced at or below the store's cost, sold deliberately at a loss to attract customers. The store expects to lose money on that specific product and profit from the other items shoppers buy during the same visit. The term comes from the idea that the product "leads" you into the store while losing money doing it.
The classic example: the doorbuster TV
Every holiday season, a big-box store advertises a large TV for $199, far below the normal $400-plus street price. Shoppers line up before opening. The store may have only a dozen units at that price, often listed as "limited quantities" in the fine print. Each TV sold loses the store money, but hundreds of shoppers who miss the TV buy other electronics, accessories, and gift items at full margin on the same trip. The TV did its job.
Why limits exist
"Limit 2 per customer" is the tell. A store selling below cost must cap how many units any one shopper can take, or resellers would clear the shelf and the promotion would bleed money with no foot traffic benefit. Limits also create urgency, which is part of the design: scarcity makes the deal feel bigger and pushes faster buying decisions on everything else in the cart.
The everyday version: milk, eggs, and rotisserie chicken
Loss leaders are not just a holiday event. Grocery stores routinely price milk, eggs, bananas, or rotisserie chicken near or below cost. These are high-frequency purchases that get you through the door weekly. Once inside, you walk past thousands of full-margin products. The rotisserie chicken that cost the store more than its $5.99 price tag is profitable if the average shopper adds $40 of groceries around it.
How to buy the deal without buying the trap
The defense is simple: buy only the loss leader. Make a list before you go, get the doorbuster or the cheap staple, and leave. The trap works through attachment: the store's data says a large share of doorbuster shoppers add full-price items, which is exactly the behavior the promotion was priced to create. If you came for the $199 TV, the $49 HDMI cable at triple its online price is where they recover the loss. Price-check the add-ons before they go in the cart.
Loss leaders vs predatory pricing
Selling below cost as a limited promotion is legal in most of the United States. Predatory pricing is something different: a company selling below cost specifically to drive competitors out of business, then raising prices once they are gone. It is an antitrust concept, it is extremely hard to prove, and it is not what your grocery store is doing with cheap eggs. A handful of states have below-cost pricing laws for specific goods like gasoline or dairy, but the ordinary doorbuster is simply marketing.
The online version: thresholds and bundles
Online stores cannot rely on foot traffic, so their loss leaders work differently. Free shipping thresholds are the digital equivalent: a $35 minimum nudges a $28 cart to $40, and the margin on the added items dwarfs the shipping cost. "Frequently bought together" bundles pair a discounted hero product with full-price accessories. And the 10% off your first order in exchange for your email address is a loss leader for your attention: the discount costs the store a few dollars, and your inbox is worth far more over time.
A checklist: is the loss leader worth the trip?
Run through five questions. One, is it a real product or a stripped-down event variant? Two, is the price clearly below the normal market price, not just below an inflated "was" price? Three, will you buy only the loss leader, or does the trip tempt you into full-price add-ons? Four, what does the trip cost in time and fuel; a $30 saving is not a saving after a 40-minute drive each way? Five, is there a limit that still covers what you need? If the answer to the first two is yes and you can hold the line on the rest, take the deal and walk out.
Spotting a fake doorbuster
Not every dramatic price is a real loss leader. Check the model's history: some "doorbuster" TVs are stripped-down variants made for the event, with fewer features than the model the "was" price references. Compare the unit price and the specs, not just the headline number. A genuine loss leader is a recognizable product at a price clearly below the market; a manufactured doorbuster is a lookalike built to look like one.