You make it sound as if GV is denying people food and shelter....this is a 3 day festival....no one is guaranteed to be able to afford entertainment in life....its discretionary!
No one is forcing you or anyone else to attend all 3 days..........going to Coachella and having enough money for "party supplies" is not a right, nor are your required to attend.
Keep in mind that GV incurs a risk every year.....the first Coachella almost put Goldenvoice out of business......would you have kicked-in a few extra bucks to help them absorb the losses that year?....they are far from "Blood sucking assholes"
Instead of hoping them to keep the ticket price down at your level, why not worry about being able to increase your income so that you can come up to their level?