Every time I go into one of those shops, it's because I need something immediately, to take away. They never have it in stock, and ask if I'd like to order it. If I wanted to order it, I'd do it myself, online.
Granted they provide convenience and the ability for customers to use products in store before purchase, but I can't believe people still pay the price premium.
I've only stepped foot in their stores twice in the last couple of years; once to try out the new Retina MacBook Pro and once to inspect televisions before buying one online for ~£400 less than their price.