Hell, be an rpg hero and make it a lending library to your actively playing associates.

The only parts of my collection that I don't lend out are the absurdly difficult to replace box kits. Even then, I'll make copies of the material. My kid's d&d group plays 5e, but the DM has borrowed some of my 3.x books for ideas, and has (with full supervision because I'm a little protective) had access to my spelljammer box (before they redid it).

Besides, I may end up running a game again. Most of my regular players have expressed interest, and it's only scheduling that keeps it from happening. Shit, I might even do a game with the original rule materials some day, the way I used to do ad&d short games (a few months of a story, or breaking out a module) when we were playing 3.x