I hope so...I have disc copies of Fallen Enchantress and Emperor of the Fading Suns and other goodies.
There are some sites (fewer now a days) that deal in old/new game selling/trading. I've been a member/user of a site called
GameTZ for going on 20 years (on Mar 21). Unfortunately, there aren't many on that site interested in wargames...some, but not many. Lately, I've mostly used it to grab cheap Steam keys (e.g. BattleTech and DLC for $2!). There are still people that want the CDs, floppies, etc, but more and more trading/selling is digital.
...and yes, I seem to be more a collector that a player. Got 225+ just in my Steam library. The eye candy always gets me. At least I have slowed down major buying the last few years.