Eisenrecht: I've been a massive fan of this site for years at this point, though, I can't help but notice that I'm not seeing many classics being added to the catalog anymore.
It seems that all of the games that are released on here are the same ones that are on every other distribution site. Am I just overlooking them or is this the way that GOG is going?
I bolded the important part in your message.
It is not only that "GOG has changed". All the other stores have changed too. It is not only GOG who is into this "old classics gaming" anymore. Ever since GOG (and DotEmu) proved that there is money to be made from old classics, the publishers and other stores caught up, and started selling old classics too. Even Electronic Arts likes to release its older classics now primarily on their own Origin store, e.g. I am not expecting the Command&Conquer games to even appear in GOG (and even if they did, there'd still be the complaint that the C&C games are already sold in other stores already, in this case EA Origin).
So if you want more "GOG exclusives", then I guess you should demand that Steam, Origin, Gamersgate stop selling e.g. old classics. :) I, on the other hand, hope that e.g. more Star Wars games and TRON 2.0 appear on GOG, even though they are already on Steam too. I'd like to have C&C games in GOG too, even if they are already on Origin. If I understood you right, you don't see much of a point of them appearing on GOG anymore, as they can be obtained elsewhere already?
From my point of view, the amount of games that could reasonably be expected to be "GOG exclusives" is going to be thinner and thinner, so it is not reasonable to expect GOG to sell only "unique" games that publishers think will not sell elsewhere, or other stores are not interested in selling. Heck, even CDPR sells The Witcher games also outside of GOG. Shouldn't they? Or shouldn't GOG sell The Witcher 3 because it will be available in other stores too?