I have never attached much importance to this, because commissions on exchanges are very small, and if I buy a token once for a couple of places, it is not even noticeable to me. However, when you need to do many operations in a day, you can lose a lot on such commissions. After all, recently I needed to sell and buy tokens 10 times for an airdrop and I spent 5 dollars on commissions, which is a lot and it is not a fact that I will receive a profit