'general' festivals - but this is my point a festival is more than just the music, a lot of the shows we do have just as much dance music as any other type of music, but because they don't pin themselves down as being a 'dance festival' they attract a much greater audience - most of whom will end up having it to one form of dance music or another over the course of the weekend whether they knew they liked it before they came or not.
People buy into the whole experience of going to a festival - this is often more important than who is on the line up. Once they are there you can play them what you want (as long as it's good and fun) and they'll enjoy it. Billing yourself as a 'techno' festival or a 'trance' festival etc is inevitably going to reduce the amount of potential customers you appeal to. Why not just create a really good festival and play a lot of dance music at it???
Besides who wants to be at a festival where nothing but techno and trance gets played??? - variety is the spice of life, part of the joy of the experiance is coming accross something random you wouldn't have thought you'd have liked. This works the other way as well - people might turn up to see bands and leave loving dance music.
I'd also like to point out that we only really work events up to about 25 000 capacity, so i'm not talking your glastonbury's, isle of wight's, creamfields v, etc. There are plenty of smaller events that sell a lot of tickets