This is it, in a nutshell....
I don't run any Audyssey in my system (my AVR boasts 2EQ) and always preferred the sound of this approach (along with my own calibration efforts with regard to channel levels, crossovers, etc.).
Indeed, as Shady alluded to, if you have good speakers and a decent room/environment, these room correction schemes aren't really necessary (IMO). In my case, I'm running Polk RTi12 towers for mains, which are well-made speakers, and they're positioned equidistant from the sweet spot (as is the Polk CSi30 center), so my soundstage is rather balanced (the two surrounds are a bit uneven in terms of distance, but I correct for that by setting their distance differences in the AVR) -- I never found a need for Audyssey.
Here's one piece of advice I can give you, my friend Hetfield: DON'T talk about how you prefer not to use room correction software in your setup ANYWHERE NEAR the AVS Forum -- those guys will eat you and your offspring alive. They just don't want to hear it....say anything remotely differing in opinion when it comes to DIRAC on the new Onkyos, for example, and you'll be cast out as a pariah, destined to walk the earth for all eternity as a demonized forebearer of the coming apocalypse.