A lot of otherwise intelligent people still just don't understand how the price of a bitcoin is arrived at. I think a lot of people must think bitstamp and mt gox and btc-e bought a lof of bitcoins and now they are selling them? Perhaps we need some kind of education campaign to help them understand how the price is really determined?

Like I have friends that don't understand what gives a bitcoin its value. They just don't get that it's just other people buying the coins. It's so obvious to us, but for the people on the outside not so much.