A Military.com reader wrote in to note that commissary prices change a lot, and there doesn't seem to be any rhyme or reason. One theory is that prices are raised near payday when a lot of people are shopping, and then lowered again a few days later. It's a theory that's partially true, and partially not true. For more details, see the latest Questions and Benefits column.
Does the Commissary Raise Prices on Payday?
