The U.S. Mint currently loses over $50 million a year on pennies—specifically on the production of this practically-worthless (literally) coin. So it's no surprise that over half of the coin collectors and numismatic experts polled expect the penny to be phased out of use in the semi-near future. For more on matters of money, check out the graphic below from International Precious Metals:

Coin Experts Survey Infographic
Coin Experts Survey Infographic