Free Time vs Full Time
Whatever you choose to do in your free time you should do as a job.
As with all pithy quotes, there are obvious caveats—”Gosh, I just love sitting around watching talk shows and eating filthy obscene amounts of cookie dough, someone should pay me to do this full time!”—but I largely agree with Amanda’s line of thinking. Your hobbies are, or at least help point to, what you’re passionate about. Go do that.
And besides, have you ever been to Barneys? Those people love what they do and it shows.