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.
Yes and I think considering the fact that there are hardly any legit and trusted websites that pay good interest left in market, I think the best way is to stock your bitcoins, fix a price in mind which once reached you will sell and just that's it, one thing we all surely know is bitcoins price will increase so make use of it.
well it is better to hold your bitcoin than investing your money to a site! Because right now only few! and rare that you can earn interest from it because it will turn to scam! Holding is nice but trading is better because taking risk can earn you a big profit from it. Try trading so that your bitcoin will be bored in your wallet.