I've had my CP72 die on me as well. This is a very common problem, and Panasonic doesn't care. The F85 replacement they sent you is not a comparable machine. It does NOT have Faroudja DCDi processing in it, which is only available in much more expensive machines, but was included in all of Panny's higher end, but still cheap, 2002 models. Mine wasn't under any warranty so I'm SOL with a POS.
I haven't replaced it yet either, but I've been looking at the Pioneer. I'm on the fence between that one and the more expensive Denons. I also was interested in the Philips963, but I've read some real negative comments about it. Maybe it was just one person with a bad experience (like me with Panasonic).