Man, as a creator this change is painful. It goes up, slowly, forever and forever, but increasing prices on products doesn't seem feasible because customers get shafted too.
The 10% Marketplace cut (I Dunno about most people, but 94% of my sales are Marketplace). 5% to sell the lindens. Another 5% to withdraw. That's an entire 18.78% taken out before it reaches the creator.
People used to say to creators that "you should be happy LL only takes X percent, just look at other places, they take like 20-30%!" Well LL's reached that point too.