Bitcoin in my purse this is an investment. I am sure that at the moment it is the best investment strategy
I agree that saving bitcoins is maybe the best way to make profit. Eventually price will rise and just for holding and not risking you will earn money, depends how much price increase, it can be almost double, nobody can say that. Also it`s important how long you plan to keep them, few years or decade, I think more it`s better, and profit can be just higher.
That is saving, but when we talk about investing bitcoins in some service, for me that is same like you throw away your money. Gambling is always a better option, with good strategy and a bit of luck you can always make some money, but don`t be greedy or you will lose all.