Anecdotally, I've experienced the opposite. I haven't seen a single "hey this is a neat experiment" post (Radiohead's similar album sale on the other hand...),

Anecdotally, I've experienced the opposite. I haven't seen a single "hey this is a neat experiment" post (Radiohead's similar album sale on the other hand...), yet I know quite a few pretty dedicated Louis C.K. fans, and remember his show here (Winnipeg) being packed solid. Louis already has the popularity behind him, because he's done the years of paying his dues building that up. That's going to be the majority of sales, with a minority percentage (10-20% I'd wager) buying out of curiosity. FWIW, I haven't even purchased it yet, because every time I've gone to his site its been down...