Please help me make a decision on a purchase that I want to make. I have a dedicated home theater and want to move from a 50" Toshiba 4x3 RPTV to a Mitsubishi 65" 16x9 RPTV. I am torn between 2 models. The ws-65313 and ws-65413. The price differences between the 2 are about $180 and need to get an opinion on whether the differences justify the price differences. Can someone chime in on this? Thanks for any help you can provide.