Problems with the South African power grid and the ever dwindling value of the dollar are conspiring to make those troublesome catalytic converters very expensive. If you had the foresight to purchase an ounce of platinum four weeks ago, you'd be standing on the opportunity to make about a thirty percent return on your investment. Makes us think the guy who went platinum mining in his modded Cadillac CTS-V was onto something. [via Business Day]