Where available, get this Barnes & Noble NOOK Simple Touch for $19.97 at RadioShack. This is the lowest price we've ever seen for this e-reader, as well as, the best price to be found for it by $48. Search your zip code for availability at the store closest to you and call ahead to verify that it's in stock (Note: you cannot order this item online). This 7" e-reader has 2GBs of built-in memory, expandable with an SD card, built-in Wifi and a battery life of up to 2 months. Sales tax is charged at all locations.