Help! Water pump$$$

When my local dealer said they could fix it today, I brought my SVX in late last night for a potential water pump replacement. When I called this morning, they said it was indeed the water pump and that it would cost $199. for the pump (not incl. gasket/coolant) and 6.0 hrs. labor. After calling 1st Subaru parts who sell a Subaru pump for $74.00 and then Subaru of America who say that the Subaru pump list price is $99.95, I protested. The dealer then said they put in a non-Subaru pump gotten from NAPA, list $202.00 (given to me for $199.00). The dealer refused to tell me what kind of pump this was, nor would they show me the invoice for it. I had called another dealer (too late), who said a new pump would be $99.95 with 4.2 hrs labor. The dealer I had the service done knocked the labor down to 4.5 (claiming it took 6 hours). Bear in mind, since the timing belts had just been done 8,000 miles ago, this wasn't part of today's work.

So, essentially for a water pump, gasket, thermostat and some coolant, I paid about $630.00.

Any thoughts? Thanks for your time.