Higher Stakes, Higher Quality?

Had a frustrating day, badly timing taking people on and losing. So I went against all the rules and entered a higher stakes game. Using some of the 300 bucks I won in their inaugural freerolls the other week I entered a $30 stt on Virgin Poker. Immediately I felt that my game was suited compared to how the other players were playing at the table who seemed intent on betting into any pot regardless of their hand. I sat back and waited for the right hand and as they came, a quick check raise seemed to do the trick. 1st Prize $150, thanks very much.

So I ask the question is the quality higher the further you go up the stakes ladder, or is my game suited to it and I am part of that higher quality? $500 stt anyone?