I was offered a free shirt and I turned it down. The person said “it’s free,” insistently. “How strange, why won’t this guy take the free stuff?” she probably thought.
Everything has costs above and beyond acquisition. Even storage of a T-shirt, minimal sure, but if you have enough shirts, what’s the point in another that you don’t plan on wearing?
Mental storage has a cost too. Now I have to think about this shirt, keep track of it, etc.