But I like watching people play DDR..though I really really don't like it, since it limits me to only four pads to dance on, and forces you to dance a certain way.

In fact, dancing games such as DDR and PPP destroys your dancing skills.
I highly disagree actually, it gets people interested in dancing, and i can actually do some really kick a$$ moves on that pad. Plus it makes fat people skinny so they can dance better, true story (i owe alot of my weightloss to ddr, 50lbs)