Yeah, that is why I always try to know how much something should cost before going to a store. Also, it's better not to go shopping when you're hungry. It's great to know how to make a deal, to barter, at markets. I like competition.

I like free markets.

It can be scary when sellers raise prices. That is why the buyers, the customers, must be very smart to demand lower prices. If the sellers refuse, then the customers need to leave and find other stores. The problem is when too many customers are too lazy to even try to demand for lower prices. Then, sellers don't have to worry. And sellers will continue to try to raise the prices more and more. And sellers are trying to make money. Customers should try their best to save money. But it can feel like too much work for customers to fight, to barter. That's too bad for the customers in Vietnam or in other countries as well.