Marc Jacobs Monochrome Pumps

I've decided these Marc Jacobs pumps are my current 'it' shoes. I loved the flat version, and after seeing the outfits you lot came up to go with them, they went straight to the top of my wishlist. But with a heel they're even more beautiful. White shoes are notoriously difficult to wear, but the black trim on these makes them a bit more quirky and means you can team them with LBD's as well as Summer whites. Question is, will my credit card handle the strain? They're $350 at Satine.