trance was my first love. it has gotten more and more popular in radio and such (trust me) but think about this. Brighton is the UKs club capitol (more clubs per square mile then any other city in the UK). your looking at like 60-70 clubs in a city that you can drive across in 15 minutes. almost none of them are playing trance. yes, some of the bigger clubs are playing trance, but house is becoming a staple, if not the staple, of real clubs.
I wouldn't sight Brighton as the clubbing capital, it may have the biggest concentration of clubs geographically but I think London, Manchester and Leeds have the biggest club scenes. I certainly know that they are the cities where people travel the furthest distance to to go clubbing.