Welcome to the thread! The more the merrier. Once you get enough posts, we would all love to see some pics of your collection.
I'm gonna disagree with you slightly on scale. For me, the ideal scale is 6"-7". It's there that you can strike the best balance of level of detail and articulation vs. cost. That's what's great about the collecting hobby, though. There's something for everyone.
I got my first Guardians of the Galaxy figure, Rocket Raccoon.
He of course comes with a BFG, the torso piece of the BAF Groot, and some....thing that I'm sure I'll understand the purpose of once I see the movie:
He's disappointingly missing an articulation below the waist except for a swivel on his tail. As such, it's hard not to feel like he's lacking the value of the other figures, even if he does come with the big whatever that thing is.