I spent around $250 on a back wheel a few months ago. I had a bent rear derailuer that sent the whole derailuer into the spokes and fender stays of my back wheel. It turns out my frame bent before the spokes and stays gave out. My bike doesn't have a deraileur hanger and is steel, so they just bent the frame back and replaced the derailuer. The wheel guy said the wheel was still true and good. At 20-30 dollars a spoke repair, they wind up paying for themselves.