I think Bitcoin will be surpassed by a better digital currency somewhere in the coming years. It's head start and network effect will be too small to be immune from a significantly superior competitor.
Totally agree with you 1000%. Bitcoin stumbled way too much in this long 6 years of existence. In fact here's what Altcoin developers from Maidsafe had to say about Bitcoin's troubles:
https://www.youtube.com/watch?v=cIasr2AiyZ0