I tend to watch the chair events when I manage to keep times straight, though if they have streaming options, it'll be easier.
Dunno why, really, other than having worked with/for a lot of people that are chair bound maybe. The racing is kinda obvious I guess, it's like cycling in a way, and short to mid distance races are always fun.
But basketball, and other sports being done from a chair doesn't seem like it would be as hype as it actually is for me. I don't actually enjoy team sports usually, but both basketball and murderball are just balls out awesome.
I do sometimes watch other stuff just for the cool factor of some of the adaptive gear, like what runners use.