Yeah Phantom DJ, I know exactly what you mean. I was doing a music production course at college (all the folk into the course were into real shit like hip hop and Drum and Bass) and in one of the classes, we had to play music that we liked. After playing a tune by M.I.K.E , I played a track from an M-Zone set to let them hear some Hard Trance. One of the twat's on the course started laughing and when I asked him what was so funny, he said that he didn't realise that anyone listened to "Hardcore" anymore.
Felt like smacking him in the face, the cheeky little C**T!!!!!!