So what you're saying if I'm understanding everything properly is that finding a "cheap" amp that's also good is kind of hit or miss? I looked into receiver prices for brands like Onkyo, Denon etc, and for the Wattage I need, the prices are pretty much hand in hand with my Quad amps, so it doesn't really seem worthwhile to make a switch just so I can get AM/FM radio and a remote control...
really it's about the wattage....not sure what your quad amps cost (i've never seen a cheap monoblock LOL), but you obviously have a pre-amp already, so for "cheap" you'd be better off to look into say an emotiva (125wpc for $399) rather than an integrated AVR setup. this will give you the true power rating at least
receiver pricing goes up exponentially with wattage, and even then the rated wattage is more often than not a marketing ploy, they rarely get the rated power unless you are into some higher end stuff which isn't cheap anymore.
i'm of the mind that SS is SS as long as it's not a total disaster of a setup...that said i'd love to be able to justify some nice monoblocks LOL i think they are so pretty and offer a different tactile experience (i don't mean sound-wise) than an AVR or stereo amp. however, a very nice AVR will offer an amazing feature set and when combined with a "cheap but good" stereo/multi amp one has everything one could possibly need IMO.