The Sony Metreon in SF used to have a giant Microsoft Store. It lasted from '99 to '01. Closed after barely more than 2 years.
Come to think of it, it's no longer called the Sony Metreon. And its Sony Style and PlayStation Stores both closed as well. The best thing left in there is Sanraku Sushi.
Ironically, the Apple store was built directly in a straight line across from the metreon's diagonal entrance. Granted, I think the entrance is gone now (they're turning the 2nd and 3rd floors into a target store!!)
What a sad ending. The Metreon was pretty darn cool in its hayday, considerably cooler than an Apple store >> There was a lot more to do than just oogle over an iPad in a stinky, extremely overcrowded grey room with large wooden tables.
I seriously hate Apple stores and avoid them like the plague because they tend to be too overcrowded and a lot of them smell bad.