What's it like spending hundreds of thousands on a pizzeria reno only to open on the first day of the Dow crash? Pretty lousy. But the new owners of House of Pizza & Calzone are soldiering on: "'The bottom line is that we have to absorb these exorbitant cost increases [mozzarella, flour, etc.],' [co-owner Paul] DiAgostino said last week 'I can't pass it on to my customers. You can't charge people $6 for a slice of pizza.'"