The organizers of the annual Classic Gaming Expo - John Hardie, Sean Kelly, and Joe Santulli - have a mission. They want to start a physical museum that collects everything about classic games - every version of every game, design & developer notes, promotional materials, backups of unreleased games, etc.
The exact location is yet to be determined, but San Jose, CA is their stated goal. The group has already done much to raise donations and is getting close to their goal, but is still accepting donations via their website.
More information can be found on their website and via their press release.