My friend and I use our 2KXL's for different stuff.
He doesn't really enjoy hip hop or dance or electronica etc... he uses it for metal! The beats he programs are sick! He hasn't been using it much lately as he is playing drums himself. His solo stuff is grindy with crazy changes etc... I watched him program and he does it in step which blows my mind. It sounds like real drummer business. But, of course I have no samples to offer right now. He is a pretty humble dude and doesn't really promote much stuff of his own. The only thing I could link to would be his "organic" band.
EDIT: SPOKE TOO SOON! Here's some Act Of God. Live MPC and guitar badassery! Sorry, don't know how to do the youtube thingy. I guess you can't really hear the MPC much but for the cymbals maybe. Ah well. It's there though. So there is proof of someone not using for dance!
http://www.youtube.com/watch?v=MnWykGHAxaoI like to dabble in pretty much everything and the MPC works wonderfully for that. Someone analogized it to a blank piece of paper, that fits perfectly. In have done, noise, hip hop, rock, IDM, whatever. It is a band in a box! If anyone wants to hear any of my stuff the link is below.
One thing I enjoy is running my guitar direct into the sample in, dialing the gain all the way up and using it as a distortion pedal. It is a horribly nasty sound!
I also repair gear and have used it as a poor mans function generator!
I use it for everything! I think it would even be good at home defense(nice and heavy!)
Great forum btw! It's wonderful to see so many users and so much info concentrated!
http://www.myspace.com/pleasewakeup (Don't use the MySp anymore but there is some old stuff, none of the live stuff has an MPC though...)
http://pleasewakeupmusic.blogspot.com/ (A bunch of DL's there if anyone wants, the Happy Birthday DL is a full length rockish thing that has an mpc drummer and sometimes bassist... Pretty much everything has an MPC in one fashion or another)
http://www.togetherweareinstruments.com/ (A band I am in. Lots of gear there...)