Bitcoin is likely in approaching the late stages of the 'early adopter' phase.

Yes, I think we are soon reaching the main stream considering that the other day my mom warned me on the phone that there was a guy in the news (a banker, or course) who warned about the potential bubble of Bitcoin or just crypto in general:

"Yeah, thanks ma' but I'm already well aware and familiar with the accusations of crypto or Bitcoin being a bubble". Lol.

But the bubble news is just a good thing because it gets more people involved with crypto in general, even if the Bitcoin bubble proves right eventually.

But like you said, exciting times and it really seems like 2018 could be a massive step for crypto with the momentum that the huge increase in Market cap has started in 2017 still being just a tiny fraction compared to the huge scale of all the other markets.