Yeah, second that. This is a real estate question that people who run office buildings and apartment buildings need to do all the time. You can have empty space if the other spaces make up for it. Or you can lower it month by month until you have all your spaces filled. You won't make the same amount of money each way, so you need to see how big the demand is and how much money you want to make. If you're feeling generous, lower the rent until all your spaces fill up, and then lower it some more.
If you're being altruistic, or want to cater to some really low budgets, you can have a "artist in residence" type program where you sponsor one or two spaces for free, or you can have a row of desks for single person freelancers that go for cheap.