People keep calling in about sauerkraut and pork on New Year's. A little search on the topic reveals:
Sauerkraut and pork is a Pennsylvania Dutch custom. Pork symbolizes looking forward on the logic that "fowls scratch backward but pigs root forward."
Is also could have something to do with identity. In Civil War days, when the first Pennsylvania regiments reached Virginia, the natives called them "Sauerkraut Yankees." Pennsylvanians my not have liked it at the time--"Yankee" was a derogatory term in the Dutchman's as well as the Virginian's vocabulary--but they are proud of it today.