Aug 7th 2007 7:58AM Some players seem to be obsessed with advancement so don't understand why anyone would want to go back to Azeroth when there is no 'material' gain. However, I am sure most are after fun and enjoy the atmosphere and community of the game.
I'd love to go back more - I missed a lot of it on my main character. As has been mentioned, its now difficult to find anyone to do ZG, NX or AQ which I pretty much missed out on.
I think Blizz could massively extend the life of Azeroth by having 5/10 man and heroic versions of old dungeons. Updates to allow flying mounts would also encourage level 70's back just for fun.
They should add high level content across the map, not just to new zones (e.g. Karazhan). I personally would rather be encouraged to revisit old zones than staying in Outland all the time until it becomes stale.