I'm new in this HDTV world. I'm trying to decide what to buy. Could some kind soul please explain why I should spend an extra $500+ to buy a 16:9 set? I understand the value of seeing the whole movie rather than 2/3 of it, but what is the advantage of a 16:9 set over a large 4:3 set displaying a letterbox image? Tell me why I should spend the extra bucks for 16:9. 16:9 looks cool, but what else will it do for me besides eliminate black bars above and below my movies? Thanks.