I'm not buying, I had about $10k worth of Bitcoins @ 10 usd and I've been selling them off for Amazon gift cards since the price was $20 a btc, then $25 a btc etc.
Watching the price and fluctuation history, I think I've made a sizable return on my investment that I don't have a problem on 'losing' money when Bitcoin hit $50 earlier (and shortly retreated), I sold the rest out (yesterday and today - about another 5k worth).
This kind of fluctation and price increase is pure madness. And a lot of people are going to get burned, and a lot of people are going to make some money.
I'll play it safe. New iMac here I come.