The only example I can think of is beer bottles. I know it's not related to computer hardware, but I'm just trying to think of examples where you purchase a con

The only example I can think of is beer bottles. I know it's not related to computer hardware, but I'm just trying to think of examples where you purchase a consumer item and it's still not legally yours. The reason why it remains property of the brewery, is so that they can re-use it when you recycle it. It might be something that's specific for my country, though.