I know this is an old thread, but curious to hear what you decided to do. By the way, outstanding job to all on the magnificent displays and rooms!! Here is how I display cards in my 'man cave'.
House is fully alarmed and have surveillance cameras. Put double blackout shades on the one window in the room. So far so good, and can't tell you the enjoyment I have having the cards out on display - both for me and to share with friends. And yes, most people do think I'm a nerd for collecting cards, but I'm ok with that : )
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