When Mike Stantzos opened his pizza shop in York, Crazy Tomato, he thought all he had to do was fire up the neon “open” sign and people would just stream in and life would be great. He hadn’t realized that the business is highly competitive, with a lot of established mom-and-pop shops and national chains that had their loyal customers. “I needed to do something to set myself apart,” Stantzos, a stocky man with a shaved head who speaks with a …