Was just wondering, based on an older thread I had read in here, how many of you home theater enthusiasts running receivers are running older models that are still serving you quite well? For me personally, I am running an Onkyo TX-SR600, rated at only 80 watts x 6 at 8ohms, and Im in a huge media room for my home theater, and the unit has been serving me absolutely fine for years now; since the release of this amp, Onkyo has released successive replacement models for the 600, and still, this unit does everything I need....DTS, DTS ES, DD EX, Pro Logic II....and it shakes the foundations of the listening room pretty good during loud action DVDs that were authored well. How about you guys? Any older gear in your rack like my '600 thats a good few years old but you have not replaced yet because it has simply been unnecessary? Do we necessarily have to get rid of gear when other models replace our units or just because they're a few years old? After this, I'll have some "power" and volume questions for fellow Onkyo owners.