Originally Posted by
bangtango
Terms and conditions of a sale are subject to change, man.
For example, there are numerous dvd's with release dates over the past 4-5 years still being sold on store shelves as new product which contain information for contests/sweepstakes (especially Disney), free downloads of songs or screensavers (numerous films), free digital copies (i.e. The Dark Knight), etc. inside of the dvd case inserts, all of which have a certain expiration date which applies.
Same with video games. Lots of them have filler inserts jammed in with the manual which offer little things such as free downloads, etc. that are only good (or guaranteed) until a certain date with the understanding it can be removed or discontinued on little to no notice.