An embarrassment of riches is an idiom that means an overabundance of something, or too much of a good thing, that originated in 1738 as John Ozell's translation of a French play, L'Embarras des richesses (1726).
Example: "All four of them have their own cars but there's no room in the driveway--an embarrassment of riches".
The idiom is also the title of other works:
RUGBY UNION: NEW DAI DAWNS FOR QUINNY; SIX NATIONS COUNTDOWN: WALES V IRELAND, MILLENNIUM STADIUM, TODAY 2.00: Al Aims to Be Ireland's Man of Millennium after Putting His Career Back on Track
Mar 22, 2003; Byline: Colm Keys CHIEF SPORTS WRITER THE outbreak of foot and mouth disease two years ago may have bruised the Irish economy and...