I think I will buy Bitcoin. Because it's one of cryptocurrency which I believe and I guess that only bitcoin can survive and show a good price. Because despite of all negative news and manipulations this currency shows a good growing.
I think you are taking the right choice, many will point out to the fact that you could earn greater profits with altcoins or icos but what they fail to mention is that your chances of being one of the lucky ones to make any money by investing in those coins is extremely low, if someone earns 100x in his investment then that means that somewhere there are 100 people that lost money.
So when you take all of that into consideration I prefer to invest in bitcoin, maybe I am not going to get as many profits as those that came before me but it does not matter because I still got in bitcoin early enough to be able to get incredible profits when the next bull market appears.