is there any competitive scene yet?
I'm sure there will be some type of eSport integration before too long. As the game is currently, it's very competitive. I can imagine having friends and organized teams would be serious stuff and very fun. Future game updates will probably try to encourage this type of organized gameplay, while still having a casual scene.
At the moment, there's regular game modes and ranked game modes (usually has better players, but no requirement to play).