The dollar coin is useless because, by touch, it is indistinguishable from a quarter. The British Pound is a useful coin because it's a convenient unit AND easy to find in your pocket. Changing the weight and size would allow continuance of the coin production, but put useable dollars into circulation. The easier it is to spend a dollar, the faster this recovery will be.
First, the minting Presidential Series dollars has cost $300 million since it was mandated by Congress in 2005. Minting money like this is... more »