Are US Postal Service Forever Stamps a Good "Investment"?
slate.com
slate.com
Definitely not. Since 1971 the increase in postal rates has increased more slowly than inflation measured by the CPI. This means that despite the numerous rate increases over the years stamps have actually been getting cheaper relative to the purchase power of the dollar.
This is not going to change either. In December of 2006 George Bush signed a law requiring the increase in postal rates to always stay below an inflation based ceiling.
http://hnsummary.com/2010/04/02/should-i-invest-in-forever-s...
I use them on the outbound mail for MailFinch (which, by default, uses Forever Stamps instead of a postage meter -- customers swear it increases the open rates but I don't have any data to back that up).
EDIT: Not that it's obsolete, though. I was just confused when it mentioned a "recent" postage hike I'd heard nothing about.