Oh yeah, I've run into a more than one person that does that.
Edit: I even know more than one person that will buy a ticket and fly on a certain flight if it is the first flight of a specific make/ model, a new route, or the last flight of a city pairing by an airline, or even the last flight of a specific airframe before retirement. Some days it is hard enough to put on matching socks, let alone tracking a new 737 route.
He's doing something wrong. I once had a very attractive woman offer to show me her enhanced breasts during a flight. Tandem seats didn't help that situation.