I'm just not convinced the asking price is justified. I'd be tempted to pay $80 for the book, all seven interviews, and the case study+bonus content. And, since I've touched on it, I'm kind've taken aback that 4 sections of the book were cut and added as an up sell; that just doesn't sit well with me. But even at $80, I'd expect a lot more quality in the interviews than I'd seen before; being unable to see some shorts, and basing my experience only on the freeview through the newsletter, I still wouldn't buy.
I hope, for the sake of the energy you've spent on this project, that I'm totally alien in the way I feel about your product. I hate to be disheartening or seem like I'm just playing devil's advocate to the positive reception you've had so far, that really isn't my intention.
Just to touch on your comment of "standard ebook prices" -- $30 is pretty standard. But when I pay that, I'm usually buying Manning or O'Reilly; getting early(beta) access and post-launch updates/errata. Also, I'm usually being written to by a community leader. I'm not trying to shoot down your integrity, but the people who write $30 ebooks tend to have significantly more provenance than yourself.
Wishing you success, thanks for the reply.