Found a few things today at the otherwise worthless flea market...
LucasArts Archives Vol. I, complete - $5. Has the CD talkie versions of Indiana Jones and the Fate of Atlantis, Sam & Max Hit The Road, Day of the Tentacle, and other CD's no one cares about - demos and such. Manual, troubleshooting booklet, reference sheet, original sales receipt.
I spent about an hour cleaning the CD surfaces as for display LucasArts used little tape tabs to hold the discs, which over time embed their stickiness atop the discs. All cleaned up fine however.