Depends on the weather really, you don't want to be wandering around in the pissing rain, takes all the joy out it. The festival is OK though, loads of good comedy acts at a pretty reasonable price, accommodation might hit you in the pocket though.
Its amazing how the whole of Scotland always jointly shares the hatred of another town, shows our community spirit.
Same in England, Mancs & Scousers, Dog ****ers & mackems, Leeds & Mancs, and so on, but every one hates Cockneys for some strange reason.