Quite simply, apply if you wish, set your own budget, if they ask too much for the pitch fee, negotiate or walk away. It is 99% irrelevant what a few people on here think - your customers are the other 99% of attendees.
There are some uncertainties this year (Olympics and it's the year when the credit crunch is supposed to start to hurt). Not seen much sign of that around Sidmouth yet!
There was supposed to be a presentation by your friend Mr Braithwaite at the Sidmouth Town Council meeting a few days ago - guess what? I turned up to listen and the agenda item was swiftly put into Part B of the meeting (from which mere taxpayers are excluded). So whatever was said will be filtered before it is deemed fit for mere human consumption.
I've sent an email asking about stewarding - I guess I have about as much chance of being accepted as you do!!
On a positive note the official website has been (is being) redesigned and parts are much better. Lots looks to be in draft form with too many words. It is to be hoped it gets polished soon.