Yes, but if you try to buy several products in this way you're not always winning, so the average price each individual pays per successfully purchased product will be awful, or the business model wouldn't work.
Right. Which is fine because that's the entertainment aspect of it. You're playing a game where the goal is to get a product for the best price, and you know it. And if you don't succeed, you lose some money, and you know that too.
Seems like a fun game to me, I'm already thinking about how I might be able to take advantage of it.