10 rupees [i]a minute? [/i]

Try 10 rupees an hour. 

Or 10 rupees to join the dance circle. Heck, I highly doubt everyone even bothered to pay-- there were probably plenty of people that would just start dancing for a bit with everybody and then leave. It's not like he had a studio or a stand he was dancing at, so unless he was being really stingy and shooing away every dance move moocher, he'd have far less than that. Nobody in their right mind would pay that much money to dance for a minute and I'd prefer the inhabitants of Hyrule kingdom not be dubbed as complete idiots... and rich idiots no less. 

Feel free to rework his math or else I can't promise a thief won't "bump" into him and then disappear with a very fat wallet...