Well, it DID drive the price for all semiauto sporters through the roof, as well as the cost of mags.
Well, for pre-ban models anyway, but that's because they were made "special" by the ban. My postban M15A2 (Armalite's designation for their AR-15 model) cost around the same as prebans went for before the ban.
Don't get me wrong, I think you should be able to have an AR with a bayonet lug & a flash hider if that's what you want. I just don't see much utility in it for the average shooter. My point is, I guess, that the AW ban was a bust, it did little to nothing.
The Brady Bunch has figured that out, which is why they are trying to "close the loopholes" left in their silly cosmetic ban. Thankfully, most of American has gotten past their anti-"Matty Mattel Looking" Ugly Gun hysteria, and soon, God willing, this whole thing will be a past issue.