Pre-reg is $50.
Case of Diablo $75
All event Air $15
When I played I only used half a case of paint (but did run out before the Final Battle) so my damage at today's prices would be $102.50.
To rationalize it, I divided it into the 3 sections of play (saturday, saturday night, sunday) or little over 34 dollars a section. Then it doesn't sound as much and with instant insurrection (when eliminated leave the field, wipe off marks, go back to base to resurrect) you can play as much as your body will allow.
Throw in the pluses of playing with and against 1,000s of players from across the nation, vendor exhibits, and the 10s of thousands of dollars of prizes given away at the post game ceremony......it is quite a bargin for the experience.