They aren't Rockstar's target demographic

No, but I'm pretty sure they're a large part of the demographic for the Sims, Farmville and World of Warcraft.

As for Dragon Age, that's the problem - you can't ignore the guy! He's a random encounter on parts of the world map, which means you might bump into him at any time while moving between locations, forcing you to load the encounter (for the nth time), and then load the world map again, and then load your original destination. That gets old very fast, especially since they have a perfectly fine online store in the game that you can ignore.

But back on topic, as long as the ads in WO are gone I'm , and I would be even more if SL could somehow un-patch the whole ad-serving code.