Completely agree. Haven't bought anything at GS since discovering this. Keep everything at BB or Amazon. It would take a lot to make me go back to using GS.
I really enjoyed Fable 3, but I also loved Fable and Fable 2. While I prefer Fable 2 slightly, f you have played either of those and enjoyed them, it's worth that price tag.
I played Skyrim on ps3, prior to any bug fixes, and I don't regret one second of my 120 hours. Only one minor quest was bugged out for me, and the patch fixed that. I'll deal with occasional freezing for a game that good.
I think you start with AC2. The first has fairly important story elements but the gameplay was nowhere near as refined as it is in 2. I think you'd be fine to read the plot of the first game then start playing 2.
Brotherhood has only recently dropped past that, so it's a good price point. Also, that game, and all other AC games excluding 1, are great. I'm a huge fan of the series.