Again, you hit the nail on the head there I think! Some people are just scared of change or just too stubborn or ignorant to accept it! I'm not for the whole ableton thing while djing either, I like to see a DJ using turntables. Traktor allows the best of both worlds really hence why so many dj's have switched over.
Obviously laptops are going to take over djing at some point I think. The same way i-pods have taken over the cd generation nowadays! Cd's were never really gonna last anyway as we all know how easy they are to scratch etc!