Although this is very important, as the price will increase a lot when this happens, what I really want to see is more and more merchants allowing people to buy goods with bitcoin. When both things happen there's no way bitcoin can be stopped, and it's price will not just go to $10.000, it will go far beyond that.
I think eventually Bitcoin will need economic crisis or collapse to really take a hold.
But we already have the test cases for that anyway. This very Press sub has seen Argentina, North Korea, Ukraine, Iceland, Venezuela, Zimbabwe, Greece etc regularly rolling through the 1st page over the years, with some news story about how dire economic conditions are forcing people to use and become familiar with Bitcoin. Sadly, the majority of people just don't have enough courage (or monetary comprehension) to take Bitcoin seriously. It's sad that it has to be this way, but desperation born out of desperate circumstances is a far more powerful motivator (and it's doubly sad, money is too basic a need and simultaneously too sophisticated a concept for people to take chances with, I find this particularly ironic).
I expect we could see Spain, Italy and Ireland begin to feature more prominently after some time (those states and their respective peoples have economic issues also), as well as perhaps Brazil. There will no doubt be some surprise entrants too, it wouldn't be Bitcoin without surprises.
