Marv, Luis - have you both heard the K812? I think very highly of the K1000 in the correct system - I don't know if you considered them when it was stated as best AKG.
http://www.changstar.com/index.php/topic,1482.msg39070.html#msg39070One of the two units from Tyll:http://www.innerfidelity.com/content/akg-k812-professional-reference-headphone
Didn't like them. Probably issues with consistency like K550.
K1000 non bass lite is good. I consider it a freak-show kind of thing. Still way way super overpriced at current asking. Even then, too bass lite. It needs 58 more drivers and compensation to get low bass because it is dipole. Also hard to say. Some were upper-mid forward. I guess those were the bass-lite version?
Now if AKG were able to recreate them - the non bass lite versions - and sell for $999. That would be good. But not a penny more.