GARRISONVILLE, Va. — When Paddy's Steakhouse & Pub opened in December 2002, a 12-ounce prime rib sold for $15.99. Today, after a run-up in beef prices and a growing clientele, the menu lists that same cut for $19.99. "You don't want to change your prices because people will think that you're trying to rip them off," said owner Michael Brosnan, who absorbed the higher costs for several months before reprinting the menus. "But you've got to do what you've got to do." With energy and raw-material costs on the rise and demand for goods and services picking up, gasoline, milk,...