As one of the stallholders over the weekend, have to say we couldn't have asked for more. I know @Blaine & team were run off their feet but put on a top class show nonetheless. It was a great social event too, seemed to good vibes all round.
Having worked in the Commercial Events sector, I can confirm that venues like RDS, Convention Centre etc are likely to be well out of reach of the budgets of most voluntary organisations these days (In fact, I know of Event companies that would struggle to justify their hire).
Actually, I can think of at least one 'big business' that lost money on RDS events, and these would have had big sponsorship...