There is a guy that I know vaguely, that lives not 100 miles from me, that loves his Kleins (and his Paul Donohues, but that's another story). He lurks mainly over on Retrobike.
I remember, back in my MTB racing days, lusting after the Kleins, purely for the paintwork. Then again I also lusted after the Whyte PRS-1, the PACE square tubed MTBs and the proper Gary Fisher MTBs (not the Trek made ones).