I was in the market for a new tv a few months ago and ended up buying the Vizio 42" HD 1080p. But Now, I saw that Vizio came out with a new series called XVT. They currently have 3 tv's in the XVT series. The biggest one is the VP505XVT 50” Full HD 1080p Plasma, then there is the SV420 and SV470 (both in 42” or 47” Full HD LCD). Would it be completely unreasonable to sell my 42" and go to Costco and buy the 47"? I've only had my 42" for a few months but the new XVT series has 120Hz, as opposed to 60Hz and supposedly even better picture quality and noise reduction. There's nothing wrong with my 42", but when it comes to tv's specifically, I always want the best out there. What do you guys think? Any suggestions or reviews on the XVT? Thanks!