This is a great point, but, as someone who makes furniture, I think there is also great validity in owning temporary pieces. There are things that are good when they are heirloom pieces (I think good chairs and bookshelves are highly underrated), but desks, coffee tables, bars etc are frequently best when they are bought to fit the space they are in. if you move even once every 2-3 years for work, the availability of temporary furniture is both a serious convenience and in the case of stuff made from composite materials, it is an environmentally viable option.