Because half the time I go into Wal-Mart the keys are missing off the laptop displays and God knows what is smeared on the screen. And Target has a 6 ft display with one each of the Apple products where some 12 year old is playing Angry Birds while his mother is somewhere in the store shopping. Ever been into an Apple store?
Where there are dozens of each item to try out. Multiple employees available to answer questions instead of someone who stocks underwear in WalMart trying to answer your questions. REALLY?