San Diego is home for Prior. I think the original post fails to take that into account. If someone is going to need to spend a bulk of his time for the first few months rehabbing under the supervision of some team's doctors, it's not hard to see why he would want to do it at home. Had Prior gone to St. Louis, Cincinnati, Houston, or some other place, maybe we could draw these off the wall conclusions, but he decided to go home.