
I have a few games in HD that I also have is SD. One of them is the Ratchet and Clank Collection, and it does look amazing in HD, I have to say. It was more for the trophies, though, lol. I bought Beyond Good and Evil HD in hopes that it might convince Ubisoft to make the sequel. Ha ha ha. I do think that releasing older games to make them more accessible is a good thing, though. I would never have played Ducktales, for example, if it hadn't been re-released for the current generation.
As for movies, I have been buying new movies that I want in bluray, but I'm not going to go back and replace all my old DVD format movies with bluray. I'd go broke. Your comment about Star Wars just reminded me that I need to go find a cheap used VCR, because I own the trilogy from before George Lucas "new and improved" it. Han shot first, dammit!