By Bob Hoover, Pittsburgh Post-Gazette Jay Dantry, owner of Jay's Book Stall in Oakland, is closing the store after 49 years of business. There are a couple of reasons why independent bookstores are declining, but none applies to Jay's Book Stall in Oakland, closing Friday after 49 years. "I'm going to be 80 in August and waiting for 'Dancing With the Stars' to call," Jay Dantry joked yesterday, explaining why he's retiring and closing down. He opened his shop, at 3604 Fifth Ave., in 1959, but has sold books for 53 years. "It's all become a bunch of gadgets these days."