But if you buy Pre/Pro and an Amp, Tech only affects the Pre/Pro. If you are going to spend 1K on a receiver every couple of years why not bite the bullet spend 2-3K on a pre/pro and amp and then spend the 1K and on upgraded Pre/Pro.

I don't know of any dealers that won't take a well maintained Pre/Pro in trade for a new Pre/Pro. Cost would be about the same as buying a new receiver, plus you get the sound benefits of seperates....Tony