this is how it is
the higher up you go in the limits does not necessarily mean anything.
a lot of the mid limit players are occupied by a lot of young guns that don't necessarily have the bankroll to play at the high stakes, but definately know what they're doing.
the higher you go up in takes you will find that the players are more agressive, and playing your position plays a much bigger factor. this does not ring true to everyone, for there are a lot of just rich flounders that don't care about losing thousands of dollars.
if you keep track of players, you will easily spot who the good players are. they are always online, and with much more money at the tables then the table allows initially for a buy in.