It's starting to spread. I've actively thinking about taking up Tai Chi again when the training sessions have run out, and I'm researching taking the Washington Motorcycle Safety class, and the other day I was browsing thru a friend's copy of Drawing On The Right Side Of The Brain, and found a bit where the author talks about her intensive 5 day all day class that will teach anyone how to draw, and thought "Me want that...".
There are worse habits than self improvement. It's not a terribly cheap habit, though.
This is part of what makes me so angry about public education. Somehow they've taken something that should be attacting kids to the point where you have to beat them back with sticks, and have turned "education" into an ugly thing, a "hiss and a watchword".