jnanian, most of the film available on today's market is cut from frozen master rolls.
You guys act like the film You buy new today, with exp date 2015 was made yesterday
Average Joe's ISO 100 films keep well.
Films like Agfa microfilms (PET base) never had expiry date, it was well known in the 80's that those film can hold at least 20 years at reasonable room conditions.
Adox CMS 20 (made by AGFA) does not have an expiry date on the box.
Anybody cared to ask Adox or AGFA about evidence?
The interested parties could read the appropriate ISO standards http://www.iso.org/