I have seen so many lose lots of wealth. A friend lost 500 btc when it got locked up in MtGox. I saw that coming and told him to get out. He was kept in it by the "bandwagon" fallacy. "But... but, there are thousands of people all over the world in MtGox, and you know something they don't?" I was not the only one. I also got out of bitinstant, bitstamp, and bitfinex before things went sour. They are, after all, just web sites.

Just because everyone is doing something doesn't mean we should ignore common sense and the ability to observe the past and guess the near future. Duh.