Eh, mine was a rusty bucket - was from the snowy parts of Japan apparently and the salt on roads screwed underneath a bit, basically didn't get it checked out properly before purchase being a youngen, mechanically was fine apart from unusual extra turbo lag which Trent couldn't explain without taking turbos out, but surface rust on the rear subframe etc made it hard to sell, only got like 20k for it 5 years ago, barely had many people come and check it out. Buyer bought it unseen flew from SA then put it up for sale again for 26k over there after a few months, not sure how he went with that.
The GS will go up in time no doubt, rare as and eventually won't be many around - who knows if I'll keep it for the long run or sell in another few years but at the moment happy with it and wouldn't want anything else for what it's worth.