> Warehousing, inventory, service and delivery costs could easily make parts cost more than the original item. Leave delivery costs out for a second; all that

> Warehousing, inventory, service and delivery costs could easily make parts cost more than the original item. Leave delivery costs out for a second; all that you're really arguing for is that instead of warehousing/inventorying old parts, it should be much easier to order individual parts on-demand from local boutique fabrication suppliers. Sure, that costs more per-part than the original (which benefited from the cost reduction of mass production), but as much as the whole? My gut is pretty doubtful on that.