Its very nice to do and its profitable too and you have to do nothing.
If you do possess huge amounts of bitcoin then holding would be good idea too because you would surely made profits on future but if you are just holding small amounts then its better to invest those up in able to grow rather just holding it. Seeing profits on short terms are the best too.
Investing lots of bitcoin for long term purposes would really pay the price of the waiting time that youve made compare on just holding a little amount , its not worth for the wait . As i mentioned earlier better to hold huge amount so that you could able to feel the profit.