The thing I like best about Bill Watterson is that he didnt want to "sell out" and be real commercial with calvin and hobbes. If you notice, there are no official calvin and hobbes shirts, stuffed animals, or cartoons. (All those stupid calvin pissing on ford or chevy are illegal, but they are so small it wouldnt be worth going after them for copyright infringement) He had to fight the syndicate for this, and gave up a ton of cash to boot.
Now hes almost a recluse, he doesnt like to do interviews or anything, hes just painting in the woods. I read an article that said he is burning his first 500 or so paintings, because some artist said those are just "practice".