Old games are still available for sale, and I'd rather have a physical copy for 7$ than a digital copy for 6$.
Not only are old games still for sale physically, but GOG deals mostly with publishers, not developers.
Any Interplay games on GOG go to funding a company that does not deserve to still be in business. Interplay CEO Herve Caen ran the company into the ground, and Interplay is a known offender when it comes to not paying its employees.
Strategy First is another shady company that does business with GOG. Jagged Alliance, for instance, wasn't even developed by them, they just happen to own the IP. They have also been accused of not paying their developers, and have had a major run in with Introversion for this reason.
Companies like this are nothing but unnecessary middlemen who profit off the exploitation of IP. The original developers are not getting any of the money from a lot of games on GOG. I, for one, would rather spend the money on Amazon, get a physical copy, and give my money to someone who doesn't directly exploit our industry.
In Sacrifice, I always feel like I won because I did good and I lost because I skrood up. Also, the story is excellent.
Agreed, Sacrifice is definitely up for most underrated game of all time.