[wayrad]

It's just 45% right now, AFAIK - other times it varies. You're right though, the Micropay rebates aren't real savings, since the asking price is often jacked up if you use Micropay (or decreased to a more realistic level through discounts or rebates if you don't, which amounts to about the same thing as far as I'm concerned). While I do most of my ebook shopping there and am satisfied on the whole, this doesn't impress me as a particularly straightforward approach. In fact, it almost seems designed to confuse.

That said, I think it's possible to get books for a reasonable average price by being careful. Personally, I tend to use the Micropay dollars to buy lots of lower priced books, especially at times when the discounts/rebates aren't so good. That tends to keep the average per-book price down. But I can't say I've kept track, so maybe I'm fooling myself...