Who on here has used Galen's services?
Unless you plan on dealing with the BJ crowd, have an unusual car or a high-ender that you want to try and command top $, GG is a waste of money. Most of the people I know, including some high end hemi cars couldn't give a crap about the "certified by GG" thing. IIRC, there's been some legal wrangling going on with some GG certs of high end cars not being what they were presented as at sale/auction.
I have a friend that gave up on getting anything from GG, that was 5 years ago...
IMO, it's just another dagger in the hobby. From an informational standpoint it's nice, but to lend some credence and increased value, like the pope blessed a car, is foolhardy.