The Times featured the couple in 2007 in a series about "the effects of the growing concentration of wealth," in an article in which Ms. Rushmore (née Kim)--a former banker and a devotee of spiked Gucci heels--deliberated over the particulars of a $30,000 couch that would make the centerpiece of Mr. Tune's former abode, which the Rushmores put through an opulent renovation before returning it to market in 2013 for $14 million.