But over the years, the savings would begin to accrue, she said, largely because a $1 coin could stay in circulation for 30 years while paper bills have to be replaced every four or five years on average.
"We continue to believe that replacing the note with a coin is likely to provide a financial benefit to the government," said St. James, who added that such a change would work only if the note was completely eliminated and the public educated about the benefits of the switch.
Even the $1 coin's most ardent supporters recognize that they haven't been popular. Philip Diehl, former director of the Mint, said there was a huge demand for the Sacagawea dollar coin when production began in 2001, but as time wore on, people stayed with what they knew best.
"We've never bitten the bullet to remove the $1 bill as every other Western economy has done," Diehl said. "If you did, it would have the same success the Canadians have had."Beverly Lepine, chief operating officer of the Royal Canadian Mint, said her country loves its "Loonie," the nickname for the $1 coin that includes an image of a loon on the back. The switch went over so well that the country also went to a $2 coin called the "Toonie." Rep. Bill Huizenga, R-Mich., affirmed that Canadians have embraced their dollar coins. "I don't know anyone who would go back to the $1 and $2 bills," he said. That sentiment was not shared by some of his fellow subcommittee members when it comes to the U.S. version. Rep. Lacy Clay, D-Mo., said men don't like carrying a bunch of coins around in their pocket or in their suits. And Rep. Carolyn Maloney, D-N.Y., said the $1 coins have proved too hard to distinguish from quarters.