I recently had my Canon FTb fixed. I had used it semi-professionally for over 30 years so was expecting that the bearings on the focal plane shutter was worn. They replaced it and cleaned out the viewfinder prism and the camera is as good as new. Cost me a bit over $150. including parts.
My Hasselblad 500C is in the shop right now. It has never been serviced before, but the shutter is jammed and many other parts are just plain stuck. The camera is pushing 40 years old. To fix each item piece meal would be in excess of $1000. To do a complete service package, including replacing the main shutter mechanism with a 500c/m, replacing the felt light barrier in the film box...basically making camera as good as new with the upgrade, it costs $450. The repair person tells me that even if I bought a replacement camera (about $1100 on ebay), I would still probably have to do a service on it to make it good working condition again.
My take is that $150. by today's standard to renew you camera probably isn't such a bad deal. For comparison purposes, compare that with the labor rates to fix your car at an authorized dealer...($100/hr?).