From what I can see, the price margin between btc-e and bitfinex for BTC/USD as of right now is 49 USD.
Is it feasible to buy BTC from btc-e, and sell on bitfinex? Or do the fees completely kill the profit?
Has anyone tried something like this?
what you are thinking or analyzing is very possible this is what traders call arbitrary trading. But to make profit from it you have to work intelligently, because, there are many things involved: Timing, bank, bitcoin and fiat money in bank. I will advice you to get a bot that will do all this for you.