Anybody have a recommendation on which tv I should buy? I've been looking at the XBR widescreens for a while and have been debating whether to purchase. Now that the new model (910) is out, is it worth paying more (about $2400) for this model. I know the color is different (black vs silver)..and supposedly it has a better picture quality with Hdtv. Any insight? Is it really worth paying an extra $600 or so?