Fortunately/unfortunately, we have a large ranch with 1900 square feet on the main level and about 1400 finished in the basement with another 500 unfinished. None of his hobby stuff is on the first floor. He uses half of the large living room in the basement as his gaming room where he also has cabinets to display his miniatures. He also has an 8 by 6 foot walk-in closet to store all of his games, costumes, etc. which is about 80% full. He's been doing a good job lately sticking to his own spending money, and we're accomplishing our savings goals along with small house projects and vacations so I just let it be.