it seems tome that gold class BMs get a stiff price increase down the road... That Gold Class Presidio is incredible. I've owned enough Sebenzas and Strider folders to make a sane man puke.... They ARE great knives, but I consider Benchmades and Spydercos a better "using" value... If I were James Bond I would certainly opt to EDC an SnG or Seb, but since I've come to my senses, I find a nice Spydie or USA made Benchmade to be the ideal EDC.
To answer your question, yes, I consider Blue, Black and Gold class Benchmades to be great collector pieces... "collector" being total safe queens and being in the "collector's" possession for many years. CRKs and Striders will hold their value better in the short run, but I'd bet if the three companies stay in business for 20 years the overall value would be similar.