I am in the process of building a guitar display / storage cabinet for my guitars. My brother repairs, restores, and tunes pianos. He is also building banjos. He uses a piano humidification / dehumidification system called "Dampp-chaser". He lives in the dessert where humidification is paramount.
I am considering this for my cabinet. I live at the beach without much temperature or humidity change except when the santa anas' blow. What are your thoughts?