Anna Nicole Smith shot holes all through your "Get Married To Lose Money" theory...
But you're right overall. Also consider crafters and people who paint or sculpt for a hobby. The goal there just like in poker, is to have what you love doing pay for it's self and then some.
My neighbor plays golf every week. He doesn't make money, but catches a nice beer buzz. He also spends a small fortune on equipment, collectibles, and time on the course(I think that's what it's called. I just see it as a great big field of grass with a zen garden on one side and a pond on the other
).
Just saying...
So, the OP they're a flame magnet, troll, sore loser? What?