famousringo
First Post
Another reason that extra magic items might be good to keep around is for spare/replacement gear. If magical items are fairly commonplace then that means that more are being made all the time. Adventurers tend be hard on equipment and items get lost or destroyed all the time. Having a few safely stowed somewhere isn't a bad idea.
Stockpiling is one thing you could do.
I'd be tempted to trade surplus magic. Give a magic item to a henchman in exchange for henching services, give it to the captain of the guard in exchange for future legal leniency, donate it to a temple for future healing, barter with the mage's guild for teleportation and research materials, curry favour with the local nobility.
Magic items are portrayed as nearly priceless now, so I imagine the services they might be exchanged for are quite considerable.