Risk is associated with all kind of investment. Somewhere it is high, somewhere low. So bitcoin investment also has some risks which is to take for making a handsome profit.
And you can earn profit when you wait, bitcoin is not really risky at all. If you analyze the ups and down of market, every downs there are ups, therefore if you lose today tomorrow have another chance of winning. In bitcoin only people who quits are the one who experiences the "not safety" thing, because they lose. And that is not happening to those people who loves bitcoin.