Matt, not sure you read HN, but I know friends of yours and you know friends of mine. Anyways; we walked in the same circles, and both decided to leave CS academia.
I wish you would honestly answer this; did you leave cause academia was bullshit? That's why I left. I regularly talk to grad students all torn up about leaving academia, and I keep telling them that "industry" is just as worthwhile an endeavor as research. I feel like reading about your path you've come to the same conclusion.