There's always the 'its a free market' argument. If demand is elastic, when you don't buy them, the prices should go down...
We are talking about an agency publisher here. Should and will may be too entirely different things to S&S. The problem is that the pBooks S&S deem worthy of print-on-demand get a stupid price. So somebody decides, let's apply the print-on-demand price to the eBooks as well. Time for another round of layoffs at the pricing department.
Personally, I won't pay such prices. I'm not giving S&S a thumbs up on those prices. I'd rather find it on the net then pay.