i was thinking that too, but IMP wants freefest to be well attended.
It's sold out. They've got nothing to worry about.
all tickets have been claimed but my point is that doesn't mean everyone will show up at MPP on sept 25. the fact that it's free means that people can bail without it costing them anything. if LCDSS is a big draw for you, and you can see them at the club, you might decide skip the festival. doubtful that one big name on the bill will change your decision to attend, but start offering up a few of them and...
i'm not saying this is the only factor organizers are taking in to consideration, but it is one. just b/c it's sold out doesn't mean they want to dilute its uniqueness.