Although they are still technically legal tender in the United States, high-denomination bills were last printed in 1945 and officially discontinued on July 14, 1969, by the Federal Reserve System.  The $5,000 and $10,000 effectively disappeared well before then.

The Federal Reserve began taking high-denomination bills out of circulation in 1969. As of May 30, 2009, there were only 336 known $10,000 bills in circulation; 342 remaining $5,000 bills; and 165,372 remaining $1,000 bills.  Due to their rarity, collectors will pay considerably more than the face value of the bills to acquire them.

My Versions are not only larger, more colorful and ready to hang, they are also a bit easier on the wallet.