There's this certain caliber of dancing I was striving for when I was younger, and it's very hard for me to go back and just do it for fun. But I take all other kinds of classes: I take jazz classes, modern classes, and I love doing that instead of going to the gym. The gym is not very much fun.
I think there's going to be something that happens now, where books move in two directions, one toward digitized formats and one toward remembering what's nice about the physicality of them.