(Wal-Mart, Target price comparisons article update with Target's first-quarter results.)NEW YORK ( TheStreet) -- "Save Money. Live Better." Wal-Mart ( WMT)has based its business off this iconic motto since 2007. Prior to the catch phrase Wal-Mart operated by the slogan, "Always low prices," for nearly 19 years. But starting in 2011, it appears the retail giant may have abandoned its business model of everyday low prices, further hampering its already pressured domestic sales. In the first three months of the year, Wal-Mart's prices on food, health and beauty products and other general merchandise were nearly identical, if not a bit pricier, than archrival Target ( TGT).