after much badgering of my local av dealer i finnaly persuaded him to set up a demo for me. samsung 558 50 plasma full hd and samsung 457 50 plasma hd. now these were set up side by side, source in both was a samsung 1500 bd player through an onkyo 606 amp showing the new indianna jones flick now dont get me wrong both showed stunning picture and sound but i could not tell the difference i tried veiwing from all distances and angles and still both sets produced to my untrained eyes almost perfect picture and sound. i want to buy a 50in screen and now am confused as to why pay the premium for a 1080 set. I know this and other forums hark on about the "must have" 1080 but i just cant see it (no pun intended). advice please?