One thing about being old is I have seen things like this before. Not exactly like this, but at some point when the value is too high and the price falls backwards for a continuos 2 weeks to 40% down. No one will sell you one, because they wont be able to buy one to sell you. Up n up... then its over.
I'm in my early 30s, and this all reminds me of when the internet started catching on. If I were older back then, I hope I would have had the foresight to buy a bunch of domain names. I met a lot of people in Florida who are essentially living off the sale of domain names they gobbled up during the mid- to late 90s... I think bitcoin could present the same sort of opportunity. If it catches on and serious investors (outside of the Winklevoss's) start using it as an inflation hedge, I think it'll really grow fast -- especially if the Winklevoss's get their bitcoin ETF approved.