Imagine you have 30 year old desk of a nice design. A specific plastic piece of the desk (for argument's sake) breaks. That piece cannot be purchased because the desk went out of production 25 years ago and replacement parts are not available. So you go ahead and print the piece you need - either downloading the 3D model or creating a copy of it yourself. You have a fixed desk. A few days later you get a visit from the boys in blue for copyright infringement. Replace the desk with a car, toy, or some other widget. According to your argument - you should spend possibly thousands on getting a new thing, rather than spending $1 and a little time to maintain the thing. According to your argument the rest of the world should shame you into wasting your money. Me, I'd rather not shame anyone for doing anything reasonable like keeping their stuff maintained.