Nope, I've never handled one. The ones I saw were like $200-$300, and I just didn't understand why. My most valuable folder would probably be my ZDP-189 Endura. My other high end folders are:

Stainless Endura
Waved Endura
Waved Delica
Ladybugs (SS, Orange, Black) (Hopefully soon purple - school color)
CS X2 Voyager
CS XL Tanto Voyager (Half Serrated)
CS Recon 1 (the better quality first version)

I think that's all of them...none of those I paid more than $40-$70 for.