There is no upper limit to what I would pay to go to there.
I'd be willing to pay more than $20 if some of it went to charity.
I'd pay more than $20 if I got some limited swag too.
$20 for a banging party and some food is good by me.
I could do $15-20 if it came with some swag / charity.
I used to pay $15 for CDs at Coconuts, so I feel that's reasonable.
I would pay $10-15 if I got some swag or some went to charity.
$10 for a party seems reasonable, that's like paying for a movie.
I'd pay $5, enough to cover a venue fee. The cheaper the better.
I wouldn't pay one thin dime to attend an RB party.