I checked the price on a new Passport.
$110 for a “passport book.”
$30 for a “passport card.”
Not sure I know what a “passport card” is.
Maybe the precursor of the Enhanced Drivers License?
The passport card is a nicety extended to border state residents. They were accustomed to passing over the border unmolested. When the 9/11 response kicked in, the cards were offered as a cheaper option than a full blown passport. It only gets you back into the US from Canada and perhaps Mexico. I never bought one so I’m not sure. When I return from Canada, they just add me to the non-compliant list and pass me in.
The passport card is only good for travel to Canada, Mexico and the Caribbean islands (Maybe only the Bahamas). My wife and son are getting them for a missions trip to Mexico this summer.
Passport card is the size of a license. It can be used for land and seaport crossings only, not for air travel.