As the name suggests, Forever Stamps can be used to mail a one-ounce letter regardless of when the stamps are purchased or used and no matter how prices may change in the future.So the Forever Stamps that you buy today for $0.42 each can be used to mail a 1oz letter after Obama leaves office despite the first-class rate having risen to $4.20 then. Yeah, the last inflation resistant government fiat currency is being printed by the USPS!
BTW, the price is going up on May 11th. Plan accordingly.
Update: Since there are no carbon taxes today and likely will be in the future, Forever Stamps are a hedge against those.
Robert Stacy McCain has a post about the dangers of the Fed buying treasuries. The currency numbers out of the Fed have been signaling problems since last fall. Perhaps he'll establish a position in Forever Stamps to mitigate his inflation exposure!
FWIW, if you're taking my investment advice to go long Forever Stamps, then you've obviously got serious issues that go beyond poor judgment.