+1 Shadorne, I have 3 plasma's and 2 LCD's and hate the latter. My main TV is a pioneer elite Kuro that I have had for years - I dread the day it craps out!
All good points above, if you have been at this a long time you finally settle on what makes you smile, what makes you want to listen, and what you enjoy living with long term. I know for me, I enjoy tinkering with the system. I have tons of cables laying around and 2 complete systems available. I cannot imagine my rig sounding any better but sometimes I make a change just get something different. But I always end up back where I start eventually.