The pizza leader is showing revitalized momentum. But are shares cheap enough?After a monster run in the 2010s, Domino's Pizza (DPZ -0.31%) hasn't delivered much over the last half-decade. Including dividends, the pizza delivery specialist's five-year total return is roughly 10% -- essentially flat when stacked against inflation -- and quite disappointing when compared against the broader market's gains. Meanwhile, the underlying business has continued to expand its footprint, modernize the brand, and lean ...