Did you read my comment, or do you just not know who Grant Achatz is? SF has hundreds of restaurants. On the high-end, many of them are good (below it, you wind up in North Beach for overpriced tourist Italian). But Chicago does too; so do Seattle and Atlanta.

Name someone who has moved from NYC or Chicago because the restaurant scene in either didn't match up to San Francisco. I'll take your word for it that that person exists.