In reference to corporate stores, I think the OP is referring to stores owned by bike makers. I haven't seen anyone except Trek do that, although they do have a number in Florida and perhaps other places. Not sure that's going to be much of a trend nationwide because there's such brand diversity in many places that it makes it hard to compete against a good LBS. Also in many of the places that have people with money to throw down on a really nice bike, there's more of a desire to support small businesses.