Why invest your hard earned bitcoins when you can just hold them and use that as your investment, got to be safer than any other investment opportunities.
I am 100% agree with you, you know many time i was thinking why people do investment even we have a choice to hold the bitcoin and automatically bitcoin price give us profit and it is more safer than investment, because i already have bad experience of investment, that's why i avoid it. If we want to take risk than should go gambling.
For the reason that we want to maximize our profit, holding bitcoin will only give you success when the value increases but when you use your bitcoins to invest, you might grow your holdings and that gives you a double benefits. However, it's not that safe as holding since the risk is getting higher when you aim for bigger profit. That's the only of the investors if he will take that investing method or not.