If the margins are as stated $1 per game, why would audioholics go into the business... I mean there are already great sites: EBgames, gamestop, gogamer to name a few. I think the margins on brick/motar retail is much higher (has to be to pay for the location).
I know that Radioshack is just trying a little bit of everything to sell... and it sounds like they can make it work. I only go in there for cables and stuff I need TODAY... but for the most part I don't bother... not enough selection in any one catagory.