tfishell: If we had gotten Fallout 4 here day-one, I might be closer to believing... ;) I'd settle for some
consistency in getting AAA games here, like "if a highly-desired game is 5+ years old there's an 80% chance it'll show up here" :P Still waiting for Tomb Raider Legend, which is coming up on its 10th anniversary soon...
For the most part I don't think we will see AAA games like that show up here on GOG for a number of years, but I don't think it is because the game companies are evil or anti-DRM-free per se. They may be, but that's not why we wont see their games here, at least not the sole reason. The reason we wont see many games here is not a single reason but a collection of many reasons which will vary from game to game, publisher to publisher and also various legal issues as well.
I'd love to see games like Fallout 4 show up here on day one too, but realistically a company putting out a game like that has many concerns, and not just the obvious one concerning piracy and DRM, but rather the distribution platform as a whole, the quality of service, providing a unified or quite similar experience to all of their customers no matter where they might be buying the game from etc. For some companies/games they would not want customers who buy the game from distributor A to have a vastly different experience from buying from distributor B for example.
Right now for many games, the experience for buying the game on Steam is different in many ways than buying it on GOG. For example, Full Spectrum Warrior games on GOG.com don't have multiplayer support anymore since they used to use GameSpy I believe, so they were released here with no multiplayer. They were updated with Steam multiplayer support on Steam however. Sure, they could add GOG Galaxy multiplayer but Galaxy is not a remotely stable released product yet and the time and effort to do the work costs money and time they may not be willing to do until GOG has a competitive released product.
I suspect that the majority of new customers coming to the GOG site now will download and install the Galaxy client because it is advertised heavily everywhere across the site and most gamers are not only comfortable with gaming clients but they desire them and expect them (as evidenced by Steam being the largest online distribution platform by far, and the Steam client being mandatory and people using it). So people will end up using Galaxy and then suffering from the tonne of quality problems it has because it is a beta release and not a finished product. Some companies desperate to increase sales in new untapped markets such as GOG's DRM-free revolution will of course come here anyway because they see it as a bigger opportunity for their own products. But the biggest game publishers out there know that their popular titles will sell like fire on Steam regardless so the incentive for them to come to GOG right now is not that high, and if they were to look into it in any depth they will see how many problems people have with downloading, installing, upgrading the games and may conclude that GOG is just not yet offering a service that is on par with their expectations and their perception of their customers expectations.
Don't get me wrong though, I love GOG and am happy with what we have here and seeing it grow personally and I'd love to see such games come here regardless. I'm just trying to put myself in an external game publisher or developer's shoes for determining and speculating what might be important to them and whether or not the current service offering from GOG might meet all of what they potentially deem is important to them or their customers, noting also that different companies will perceive things differently and not all think the exact same ways.