I'm writing an article on the topic, actually (or at least, it's on my list of thing to be working on), but the shortest answer I've found so far: I gave up reading.
I can't remember the last book I read for the sheer joy of it. In Vegas, on vacation, probably. Before that...?
This may not be odd for some people, but up until I hit college, I read a book a day, or so... ravaging through stacks and stacks of novels from the library. Romances, fantasies, science fiction, adventure, kids novels... anything, really.
Then I got busier, and 'more important' things came up... until now a book is something savored on a vacation, not a staple of my time diet.
That makes me a little sad.
(And more than a little scared for my own writing...)