Can't say I proifted much, I paid way too high of fees on the exchanges, lesson learned on who to use and who not to next time. Right now I want to see how this next move shakes out. If I miss out on a big 30% move on some coins, so be it. I will sleep well tonight.
If you have many altcoins, then of course the fee will be high because you sell your altcoins multiple times.
In most exchange, using their coin to pay the trading fee will cost you smaller than not using it.
What exchange did you use to sell your altcoins ?