I am in the market to replace my 10 year old Mitsu RP set. It has been a great TV, but it's only 1080i and the picture is no where near what it once was. After reading a lot on this forum, I am just about ready to pull the trigger on the 55" ST50. I have a 5 year old Panny plasma 720p 50" in another room that I really like. Our TV will mostly be used at night, but in the daytime this room is reasonably bright. PQ is my prime concern, but I also want good wide angle viewing, good streaming options (Amazon, Netflix, web browsing) and decent 3D. Most of the programming will come from a DirecTV HD DVR, with some Blu-Ray.
I have also looked at the LG LCDs (LW5700 at Costco, LM6600) and the Samsung LCDs (ES6600), but I pretty sure the Panny is the one for me.
I would classify myself as a pretty discerning viewer, but definitely not a videophile. Are there any factors I should consider before making the purchase?