If you're talking about us, our prices have not changed. They have always been Mt Gox 24h high + 10%. The problem is that it seems higher as the value of bitcoin rises but in reality it is exactly the same. If bitcoins were selling on Mt Gox for $1 each, our rate would be $1.10, which means that $100 worth of bitcoins would cost you $110. If bitcoins were selling on Mt Gox for $100 each, our rate would be $110, which means $100 worth of bitcoins would cost you $110.

Psychologically it seems more to pay $10 per bitcoin commision that $0.10 per bitcoin commission, but in reality it is exactly the same. I'm thinking about changing the display rate to x +10% so that, for example, at this very moment it would say "5.69 + +10%" instead of "6.31". Would that be psychologically more satisfying for people, especially as prices are rising?

We would love to have lower prices, but unfortunately with wire fees, foreign exchange fees, and exchange rate risk, we have found this rate necessary to stay profitable.