I doubt you'll find any new M6 customer who got the updated nav - mine is last-gen too. Bugged me at first, but it stopped bothering me rather quickly.
It sure feels strange to buy "outdated" technology, but it's almost impossible to avoid anyway (as in there's always something better around the corner).
edit: Besides, there have been some updates to this iDrive generation since 2009 (especially regarding media playback). As a tech guy myself, I certainly would appreciate better hardware acceleration of the interface, but all in all, it's acceptable the way it is.
Last edited by 6fws; 10-21-2012 at 02:01 PM.