Having had a 7000, 7700, and now a 9000. I can say without a doubt, the 9000 is much better in everyway. I am not sure how anyone can call the 9000es a lightweight (physically or metaphorically), as it is a very good performing, well-built unit.
To be quite honest, I think the 7000 sounded better than the 7700. I went to the 7700 for the DTS, and I still feel I gave up the better unit on that deal. I have had other manufactures' DVD players in my system, and the 9000 held its own with any of them up to about $4500. BTW, it was its audio, not its video that was bested. Best Regards, Aaron