I have to strongly disagree with you guys. I own the PS3, Pioneer BDP-320, Pioneer BDP-51FD, Panasonic BDT-310, LG BD590, Yamaha S1800, Sony BDP-5100, Sony BDP-S1000ES, and Sony BDP-790 among others. I bought all of them with the objective of finding a player that would make DVDs on an HDTV look as good as they did on a Toshiba CRT that I used to own. All of the players above were lauded at some point on this forum for impressive DVD upscaling. The Sony BDP-790 is head and shoulders above all the other players I own when it comes to DVD upscaling. The DVD upscaling of the Sony BDP-790 is just superb. I also bought a Sony BDP-6200 after they dropped to $128, but it's still in the box and I haven't had a chance to test it. I've heard the DVD upscaling of the 6200 is just as good as the 790.
The only reason I don't own an Oppo is because I've struggled with the idea of paying 500 for a bluray player. I may change my mind at some point, I'm curious to see how the Oppos compare with Sony's flagship units.