Great thread!
I feel happy to add something to keep the hate alive!
There are only two types of DJs that are worth a pinch of shit:
1) A DJ that mixes his/her own music (no matter on what format).
2) Turntablists.
And the current range of tools (sorry purists) will take over. Being able to record any real world sounds and have your own music with the feel of Vinyl instantly is amazing - not to mention being able chop between heaps of tunes without taking off the record, or destroying your vinyl.
Just take a look at the kid in this vid:
http://www.youtube.com/watch?v=6RmVECh3_YQ
A few vinyl collections will be hitting ebay in the upcoming years I will imagine.