Firstly, thank you Belinda for posting the link …I’m positive that the promoters and event organizers in the Event Tribe forum will get a lot of use out of the site.
As far as pricing is concerned, it is indeed a flat rate for the products. We range from $99 to $199 (USD) depending on the type of product (business card size, web flyer, print flyer, etc). The event producer only pays for the design s/he likes, and will have several designs submitted.
Throughout the entire process, however, promoters can provide feedback to any or all designers in order to get the design looking how they want.
The promoter releases the funds to the designer only once they’re completely satisfied and have all their required files (including source files). This way, promoters have complete control of their design assets.