UNGN, I kind of see it as a double-edged sword. Yes, more attention toward G-Bodies at auctions like B-J will increase aftermarket support, ultimately making parts cheaper and more available, and will also increase the cars' value. However, it will also increase the number of shops and hobbyists trying to snap them up from barn or field finds, making them harder to find and more expensive. I think it will be quite a while before G-Bodies in general are as sought after as Tri-5s, Chevelles, Mopars, Mustangs, etc. I think the awareness of them among the "rich dummy" crowd is primarily the GN/GNX, MC SS, and 442. Once valuations on those reach nosebleed levels, you may see interest in the more common or less sought-after models increase.
When a type of car gets "too expensive", I just move on to a better car. G-bodies are head and shoulders above most "classic" muscle cars for handling, ride, drive, etc, but newer cars are constantly getting cheaper. My next big build is an LS1 /T56 Jaguar coupe that I paid $4500. It was originally a $70K, late 90's car, so needless to say it going to be a much nicer car than a G-body. After I get done with that new 5.0's/Camaros will be pretty cheap, and the cycle continues.
With low mile, 1 of 20K stock '87 GN's bringing I'm assuming $30K+, who couldn't build a nice, mild Turbo LS1 G-body for that? Soon we'll be might even be able to put $40K in a G-body and get it back out when we sell it (like most Muscle car era muscle cars).
When B-J haters whine "rich guys" are driving up the price of cars, I ask for the evidence. Craigslist is still full of cars that just need a couple thousand dollars to finish for 1/4 of what the same models are selling for at B-J and 1/2 of what the clowns on CL think their overpriced junk is worth..
I chalk up MOST of the B-J hating to "Haven't been there, Haven't done that, Don't realize how much it sucks". Buying a 7,800 mile, One of 50 Big Block Muscle Car actually isn't all that fun. You have to enclosed trailer it everywhere, you can't drive it, you can't modify it and the happiest day of ownership is when you sell it for double what you paid for it (because you didn't drive it. anyway).
Building something you can drive is way more fun that owning a barn full of low mile stock restored muscle cars, and higher prices brought to us by B-J makes building something to drive make more economic sense to our wives.
