i had to throw in my three cents here.
i am definitely sitting with one foot in both camps. i have djed vinyl for 11 years now, and will never stop. that said, i am working now on implementing ableton into my dj sets as well. anything that makes it more fun, is fine by me.
i could never go all ableton, because quite frankly, there is a certain physicality to djing with 2 or 3 decks and mixer that i just can't get with just a laptop. flipping thru the box and seeing that orange label that i hadn't planned on playing, but that would work perfectly...cueing up the record in just a few seconds and dropping it right into the mix, cutting the fader back and forth and then just dropping the shit...ahhh...i can't give that up. no way. never.
but i can certainly see the fun of augmenting that with custom edits, my own tracks, and fun little surprises that i could never pull off with only vinyl. how bout throwing in a timbaland bassline over some laidback luke jack? i can do that! dropping DnB basslines at half speed under kraftwerk? yup. my favorite thing lately...M.I.A. with electro...now THAT is freakin' fun!
i still think the luddites have some catching up to do, and the laptop only sets are missing something basic and physical. so i opted to use both. absolutes are for mathematicians and full-time internet debaters...let's play some tunes and rock the dancefloor, cuz at the end of the day, the only thing the punters care about is whether the music is pumpin' and they are breakin' a sweat! ;)