Does anyone actually uses bitcoin as a currency? It feels like most people just use it for speculation and it feels like a gigantic pyramid scam to me. You only make money with bitcoins through people who invest into it at a later point, because they raise the demand and therefore the prices. At the same time the people who invested in bitcoin in the past, make their money with you.
I'm not against crypto-currencies in general, but I'm pretty sure that the bitcoin-price will crash really hard. As soon as the price falls, everybody will try to sell their coins as quickly as possible.