The constant need to upgrade doesn't seem rooted in sound quality. If you've been in this hobby for a couple of years, I bet your system is already very good. For many of us, upgrading seems like an addiction driven by perfectionism. Aren't we all hunting for that elusive component that brings our system to the next level? I wish I could say I see the light at the end of the tunnel... but I don't. If I spent as much time reading good books as I did scouring the web for audio equipment, I'm sure I'd feel more grounded. I'm looking forward to that day.