Products' prices increasing day by day. And you can see the same product in different markets but at different prices. People shouldn't search market by market to buy the same product cheaply. In my opinion, big markets should be evaluated for the same pricing as big grocery chains. For example, imagine that there is one product which name is 'A'.  And, the product is 32$ in C market but the same product is 45$ and its price decreases with a discount to 32$ in D market. The thing is its value is already 32$ it is not ethical to let people cheat or let them buy the same product with larger prices.