Super Mario Bros: Cash in Your Dollars for 8-bit Gold By Movoto Real Estate
What's the best part about this converter? Nintendo actually commented on the numbers its spits out.

“I don’t think we have any sort of official value for the coins — sorry about that!” - Nintendo rep

Thanks for clearing that up, Nintendo. I don't think anyone is taking these values as the real deal! Thanks to 8-Bit Jay for the heads up!