yes ofcourse there is, just like any industry, there exist competitors. So you have to weigh in and cease the best time to invest in it. All investments have risks, you just have to diversify to many companies and invest what you can afford to lose. If you think the future of bitcoin is going to be null, then don't invest on it, if you already invested then do something before it's gone, there are two sides of the coins as always, and there are always an opportunity where to be safe than sorry.