Apple's reach just keeps increasing, with the iPad Air and iPad mini with retina display becoming available on the shelves at Staples stores this past week. In the past, Staples had only sold the devices online, beginning last September. The prices are the same as Apple's and other outlets, but their trade-in price is may be of interest: they're paying as much as $300 for your old iPad. Plus, you get 5 percent back in rewards credits. Staples also sells the iPod and a wide range of accessories. But no iPhone yet.
Apple has done a good job of getting into the big box stores, including Best Buy, Wal-Mart, and Target. And of course, their devices are also available from carriers. You can even buy an iPad at selected ToysRus stores.