Actually, I do not see why you even should have the slightes possible reasons to complain.
A standard fiction book via (US International +$2) Amazon costs ~8 - ~12 U.S $.
UK Amazon prices ~3 - ~7 UK £.
Here's (the so far only) Norwegian eBook store:
Digital Bok
I know it's all in Norwegian, with Norwegian prices, but here's a quick conversion:
£ - devide by 9
$ - devide by 6
€ - devide by 8
And, on top of it, the books ar DRM'ed beyond recognition and barely allows CyBook.
Prices here
As y'all see, the reades come out US$ ~500 the cheapest one and the books ("bestsellers" and new) starts at US$ ~13 and averages (on front page) US$ ~34