Well, since I hated my junior high school sewing class, I *never* thought I'd be spending most of my weekends sewing for other people, trying to work in time to sew for myself, blogging about sewing, teaching sewing, and spending every free moment researching things related to sewing!
Fun A&S classes that I've been part of usually involved learning someting completely new. For instance we invited a well known talented scribe in our Kingdom to come teach a class on Illumination. I am not an illuminator, but I had a great time listening to him and learning the history behind the craft.
Oh, and there's a point too. A&S shouldn't be (in my opinion) just about learning HOW to do something, but WHY... WHY is it done this way, WHY did they do it this way, etc.