Honest question: why doesn't the dumb TV crowd use old TVs (dunno, 10+ years old) as a replacement? Does image quality difference feel so dramatic? Maybe I don't care about this enough. To me the DVD fidelity was not earth-shattering but fine in practice. I do go to the cinema and see new TVs in stores, so it's not like I haven't seen better, just isn't worth a huge premium for me.

Other things I can think about is reliability of the screen (like dead pixels), and your family if not clued in may think you present as "poor".