If there are no laws saying you have to keep one in there after it expires, then why not go for anice aftermarket wheel at that point...
But if you want another, I guess its one of those Well Damned expensive parts.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.