We just bought a 37 inch (big and clunky) tv when a flat screen was 3 grand or more. So, since this tv isn't all that old, we are a while away from buying a nice flat screen. I had also spent about $2,000 on a new entertainment center which won't accomodate one of those nice flat screens, so I'd have to replace that too. We'll be stuck in the dark ages for a while.
Enjoy your new TV! I'm sure you will love all the new features these tvs offer.