for every water pump I've had replaced, I'd have a few buck s for dinner ;)
Those go all the time, and sometimes if it's been a while since the last one (which I *think* means 30,000 miles or more, but check on this) and you're doing work on the engine (not just the surrounding bits,but gaskets and pistons and so forth) it often makes sense to replace them prophylactically.
Heh, heh.