It seems like Tavern Brawl is designed for three primary purposes: To be a fun new feature, to add some new limited-time dynamics to the game (ladder every month provides very little in the way of fast-paced game progression), and to load up beginners with original packs a little bit more quickly.
I'm curious though, does anyone know if Tavern Brawl is going to become a more rounded part of the game? Right now it's basically a little mini game to pass time, not a main feature.
Still fun tho, I've enjoyed it enough so far.