You need to experience the pit at least once in your lifetime. There is nothing like it! At least with Katy, we know what the stage is going to look like.
With Madonna we always have to buy tickets blindly, not knowing what the stage setup will be until days before the first show, or until someone leaks it. Just make sure you know the seating for the ACC so that when tickets come up you can quickly decide whether to throw them back and try again or take them.
Seats are numbered from left to right if you're facing the stage, so seat 1 would be far left of stage, and seat 48 or somewhere in that range will be far right of stage.
Good luck everyone!