I autocross because I like two things:
Competition and putting a car on the limit and making it do what I want.
Because there is nothing to hit folks drive as hard as they can. That makes for the best measure of their skills as far as I'm concerned. Autox is also very much like 3 or 4 individual single qualification laps. You have to get to speed, right now. I like it's a mental exersize. No practice, no warm ups. You get to walk the course, then see what you can do on it.
And not to take anything away from going faster, I do track days too. But frankly I get bored after a while. You get accustomed to speed pretty quickly.
And here's the bottom line. There are always arguments about what is "better". I think all things take skill. But anyone can autox, it takes no safety equipment or many hundreds or thousands of dollars to show your stuff to someone else. And because some track guys think it's easy, they should have no issue with coming to do an autox is they want to see who the faster driver is.
I know folks that hillclimb. Few of them were particularly great autocrossers. But many of them win and hold records hillclimbing. The depth of competition isn't all that deep, and without that I don't see much point in putting myself and my car at risk.
7x SCCA National Champion + 7x SCCA ProSolo Class Champion, 2009 SCCA ProSolo Overall Champion
I drive them, I compete in them, I sell more variety of brands than any other company.