[hga]

How many non-intrinsically expensive ebooks had reasonable wholesale prices above $10?

What I've read is that the "below the wholesale price" didn't happen a lot until publishers started raising that price after Amazon created the market. Now, maybe the latter discovered they couldn't afford below $10 wholesale prices, but the method they used to deal with the problem as, as you noted, "straight-forward collusion", and as I add, that harmed the consumer; add the two together and you get a slam dunk anti-trust case.