Other scrolls have been found in Pompeii, just no libraries (so far). They didn’t get carbonized as they did in Herculaneum. The House of the Vettei was owned by a couple of freedmen (brothers, probably) and they financed their remodeling and probably small business using loans from a private banker who lived down the street. The loan records survived in the banker’s house. Not bad. :^)
Do you realize how much interest those guys owe by now? Not to mention back taxes.