When I bought in I always took the view that it was a binary bet. I looked at bitcoin in 5 years as either being worth $10,000+ or $0. That said, I am a believer in its usefulness and am going to hang on for the next several years. In my opinion you need to take a view, put your money behind it and then wait it out. Theres nothing to be gained by trying to time the market imho.