It's not really even that surprising. People go into the metro stations because they're on their way somewhere. Even if you happened on the same people who were going to pay $100 per ticket to see him, it's still not a $100 performance, because it's in a metro station.
I've really liked the aerons that I've had at work. I've heard good things about the leap. I think you can't really go wrong with either, if they fit you.