By that logic arent a lot of shops Apple stores, since places like PC World and many electronic retailers sell Macs.
Ummm...yes. That is true...nowadays...and with respect to selling product. But when Apple opened it's first retail store, Apple computers were not sold by most electronic retailers. And the shopping experience for buying an Apple product at that those places was not about selling the Apple experience as it is now at the Apple retail stores.
The Apple retail store was a strategic decision to help bring Apple back from the brink of shutting down. By Microsoft following Apple's lead in the retail store experience, can we infer that Microsoft is facing a similar situation?