The one thing that pre-Cote-ruling/pre-original-agency-pricing data would have shown us, is whether or not select $9.99 ebook prices were hurting hardback sales either. It would have been nice to be able to show that publishers were wrong right across the board when it came to their "
protecting our hardback market" rationale.
It's not at all surprising to me that ebooks priced similarly to hardbacks does not affect hardback sales (sort of a no-brainer) ... nor that windowing didn't sell more hardbacks (we all suspected as much). Always nice to have some hard data that shows much of the fear-induced, ebook-diddling, hardcover-protecting hooey was in fact hooey, though.