One of the other things I have noticed over the years is that receivers tend to have more controls/features than the separates.

I've also seen several conversations that indicate separate amps "really open up the speakers", whatever that means. Discussions in forums with recievers vs. separates usually devolve into each side defending their position too fervently.

I've had the opportunity to to hear separates and a receiver using the same set of speakers and I can't tell the difference (although I am sure that the separate amp really opened up the speakers )

See if you can find a mid/high end store and demo a receiver vs separates. At the end of the day, your ears, combined with the itch to get some equipment you think you want and a generous helping of how much you are willing to spend is the recipe you'll mix. The fun is in the hunt!!