I posted this elsewhere, but I will say it here too. The swings in price are exciting, but they are not for the faint of heart. Until the price can stabilize I don't see a large portion of the population getting involved. I have heard this from people I have encouraged, they are just not interested in seeing an investment lose 40% over a couple of days even if it comes back and goes up the same amount. The most common investor likes stability or perceived stability. I would like to add, that if this theory of mine is true, then all this talk of a bubble is definitely wrong, bubbles will take everyone in, not just those inclined to endure risk.