Your now working and not that old dvd player is fine. Its a 2003 model, and by getting another standard dvd player you will not notice much of a difference. However if you were to buy a upscaling dvd player, there would be a difference. Yes it does produce a sharper picture. But to be perfectly honest as you said, your 55 and your sight is not 20/20. Would you notice a difference, probably not. So the cost of an upgrade really could be used elsewhere. If you still want a upgrade and are considering a upscaling dvd player there are a few that come to mind. However the only one I know that upscales through the component (rgb) over others dvi and hdmi is the NeuNeo 2081 or 2085. That way you would not need to get any extra cables. The others worth mentioning are Denon 3910, Oppo 971, Panasonic S97. However these models you would have to get a extra cable, if bought new, the box may supply a super cheap cable. But even it could or should be replaced.