I have the PDP-4280XD (basically the same TV) and sometimes wish it was Full HD for Blu-ray. On the other hand, every other aspect of the picture - which is only lacking the last scintilla of sharpness - is so fabulous, I know I would struggle to match it. I suppose if money were no object, I could go for one of the last Kuro 50" sets, but I think I will wait a while until there's a 42" Full HD plasma on the market which gets universally brilliant reviews. The present Panasonics had rather a mixed reception, didn't they?
I guess what I am saying is, I know I need to be very careful, especially as I still watch a lot of SD TV and DVDs, which the Pioneer upscales brilliantly.