Beyond specs, another consideration is total ownership cost:
calibration & repair.
Some points of interest:
http://www.eevblog.com/forum/testgear/8-5-digit-dmm/msg527708/#msg527708
http://bbs.38hot.net/thread-719-1-1.html
http://www.eevblog.com/forum/testgear/8-5-digit-dmm/?action=dlattach;attach=56377;image
Beyond specs, another consideration is total ownership cost:
calibration & repair.