I think the laptop/CD thing is just a different way than the vinyl method.
Both have their pluses and minuses, though there is definately a nostalgic/stylistic tradition and huge storehouse of skills for the vinyl-playing DJ in the dance/electronic music scene. When electrified instruments came in the people playing acoustic instruments complained (others embraced the new technology and took music in a new directions). When synths came in those playing electrified instruments complained.... When samplers came in those playing synths complained... When DJs with their records came in.... Soon people will be nostalging about the "good old" 128k old skool mp3 sound, and how CPU glitches in a set added warmth and character.. and bitching about some new tech that has appeared on the scene and is taking all the art/warmth/whatever..
