Its all personal preference isn't it. At the end of the day, the majority of the crowd don't know anyway, and as long as they are enjoysing it, that is what an artist is there to do. its their job.

I have a few gripes with this whole digital mixing though.

A bad Dj is a bad DJ, whether on decks, CDs, Ableton Traktor, whatever. By poor i mean poor track selection, boring mixing, poor flow, monotonous mono-tone sets etc etc. Bad beat matching only made this blatantly obvious. Ableton / TRaktor / digital mixing has made it easy fro these bad DJs to be even worse, because they have a world of FX and bad music at their finger tips to assault us with.
I don't do live sets just yet, becasue i'm not happy with the standard i am at with it, and i've been working on live performance stuff for 2 years. A live set IMO should be more than a DJ set, more interactive, more focussed and more adaptable. Unfortunately a lot of "live" sets you hear these days are less live than they have ever been, with pre-programmed sets, pre-matched or automatched beats. Why do we want to listen to artists doing this? Erm... we don;t - buy a CD and stay at home.
IMO if you're bored mixing on decks you're not being creative enough, if you can knock out 40 beat perfect and creative, interesting mixes in an hour, use another deck - an instand 3rd dimention to vinyl mixing. I can see how people get bored mixing on vinyl if all the do is beat match a tracks and then blend it over - wheres the skill in that? thats not MIXING that is PLAYING a sequence of records - IMO mixing is about making your own sound out of tunes you are playing.

Basically, nothing can add creativity excpet a human input, whether that be on vinyl, CDs, live, ableton or traktor - whatever.
Digital mixing has only made it easier for people with no talent to pass through, mediocrity in hand. The people who innovate will always use whatever they can to progress their sound.