My sewing room is upstairs. My husband has been up there only once or twice in several years. He wouldn't care how much I have anyway. But, I do like having things up there instead of in our living space. Except for this winter. I did move one machine and a small amount of fabric into the corner of the living room, kind of hidden behind the love seat. I can hardly wait for spring!!!..
Also, don't discourage your husband from cooking. He might even learn to clean up after himself. My husband can't seem to pour a glass of water. We've been married 55 years. I don't think I can train him now.