My favorite thing about map packs is discovering new methods for developers to highlight the bugs in the game. Something as simple as a small bug can have a whole level built around it in a way that highlights just that one bug for every player. It's a fascinating process seeing how the same sets of bugs can be enjoyed in entirely new ways through some clever dev-side efforts in these expansions. God willing, we may even get a peek at a handful of *new* bugs, which is really a great value when you think about it.