I see this is the old 'electronic music isn't proper music' debate all over again.
May I just say that whilst what we get trance/dance wise pumping out of the mainstream radio stations and whatnot is frankly utter rubbish, there are a lot of very talented guys out there who use computers and stuff to create their music. The mainstream stuff, in particular the godawful Eurotrance crap all follows the same basis, has no particular finesse or soul and usually includes pounding repetitive beats with a sample of some warbling blonde bird layered over the top. Look past the mainstream wankery and endless compilations of the same rubbish of which the only purprose is to make money and you can find some incredibly talented people out there who never receive a mainstream breakthrough