Best not to pay heed to conspiracy theories around bitcoin, in my opinion.
The investment case for bitcoin is this: bitcoin is going up because people are buying, and because people are buying bitcoin it goes up.
I cannot see any change to this paradigm, unless something drastic happens. 2 such things might be that someone finds a way to dupe bitcoins, or there's a serious global recession. Both seem unlikely in my opinion, and I can't think of anything else that might derail bitcoin (regulations = not coming anytime soon judging by key banking officials comments), so it will keep marching higher in all likelihood.
(Note that bitcoin is very much speculative. I do not recommend anyone invest anymore than they can afford to lose)
