If you are doing this with a nice amount it will be profitable without any doubts also even nice to do too if you are asking me.
With long terms its mostly profitable with the bitcoin.
holding bitcoin for long time should be good idea for me
but noone can guarantee that it will make you in profit as bitcoin future itself still on development
once bitcoin established , it might guarantee you to make money by holding bitcoin
for now it's feel like 50:50 for most people so do i.