I think they've done rather well for themselves, given their success. They still support charities in a major way, and haven't given into DLCs the way Steam has

I think they've done rather well for themselves, given their success. They still support charities in a major way, and haven't given into DLCs the way Steam has. Overall, GOG > Humble Bundle > Steam if I must have a game not on GOG, so in that sense, glorified Steam sale, yes. After the original bundle, I've gotten a few in the last year: Intergalactic, Freedom, Star Wars, and Civilization. All have been great values, if you know what you want. Even if you don't, you're giving to charity and you can gift the games to someone.