Expirattion date: 1998. The film was too dry.

Although Polaroid film was recently discontinued, the prices of film on eBay have actually decreased since last year at this time, before the film was discontinued. Such an effect probably results from reduced hype and slightly less interest in the medium. One year ago, the typical cost of Polaroid film that expired in the past couple of years was $1.50 a shot, but scrupulous buyers could find film at $1.25/image. Currently, the price stands around $1.15 a picture, but patient buyers can find film at $0.80/shot. New film (expiring in 2009) still commands at least a 30% premium over older (exp 2004-2007) film. Older film is slightly more risky to use; the colors may be dull, or the film pack may not have been stored in ideal conditions (ie. refrigerated). Still, any age of film will sell, and the oldest of film from 1989 sells for as much as film that expired in 2007. It’s all about the thrill of risk-taking.

A chart of price based on expiration date of Spectra film using eBay sales data