Yeah, see, the problem with sources you don't want to be crude and drop their names. But if you have their opinion or intel, you want to share it, too. That means you can take what I have to say with the same grain.
I happen to run into my old friend this weekend who runs both an online and mortar RPG/game distributorship. We chatted about the business, naturally. He noted that while his paper backstock of Goodman Games' 3.5 DCC's were still selling, the 4e sales of the same have gone to nil, having him stop ordering them completely.
-DM Jeff