On which website do you trade? On an average, how much time does it takes for you to transfer(withdraw/deposit) coins from your wallet?I would suggest you to also consider trust and speed as a factor while looking for an exchange rather than just looking at the prices as some of them could really be a pain to save a few bucks. As some of them takes weeks if not months to verify your identity and another week to process your transaction. And you can only wonder where would the price go until and unless it's finally credited to your account.