So this looks to be the schedule for the Magic events for PAX: http://www.cascadegames.com/PAX-East.html#anchor_84
As someone that tried over the past few years to get back into Magic only to find myself not able to spend enough to really compete/enjoy Friday Night Magic, the idea of the $30 league intrigues me. It sounds like you spend $30 and can play all day or weekend with others only using intro decks, 2 boosters and whatever you win.
Has anyone even done this at PAX? Are there usually plenty of people playing? Are you able to just drop in/drop out as you want?