Oh wow, that's a good deal. At first I thought it was just the first one and expansions and was "meh" but GRAW1+2 sold me. I never liked the GRAW games but hey for $20 I might as well have the collection on Steam.
Man I facking loved Ghost Recon back in the day, it was the only game I played when I was younger. And one of the games that launched me into the money pit that is PC gaming.