Yeah, but I felt the same way watching the US housing bubble from the sidelines.

(I'm assuming you meant missing out on an investment. If you are interested in the technology, it's worth checking out bitcoin.)

I still feel the majority of the money that is being put into bitcoin is speculative(as opposed to having hard data). I think if you buy bitcoins now you lose money at the end of the bull's run. That could easily change if Amazon or Steam start accepting them and the money from actual uses drowns out the speculators (and therefore any growth in the value of the coin has real use backing instead of easily spooked speculators).

Amazon or steam hardly matters if the international drug/gun trade adopts them. However that might also mean regulatory problems.

You'll feel like that even more once it hits $1B capitalization.