What would you do? I recently purchased the SONY 36XBR450. Love it! The guy I bought it from will let me trade up to the new SONY 36XBR800 for a difference of $260.00!! They have them in stock and I could get it right away, delivered and all. I have not seen much on this new set but I am sure once again it is an improvement. So again, what should I do? Thanks for any opinions.