&gt; It&#x27;s like if it were illegal to use anything but Home Depot(TM) nails on Home Depot(TM) planks, or auto shops that have to kick back to Ford or GM or else they couldn&#x27;t touch your car.<p>It&#x27;s actually nothing like that. It&#x27;s like Ford refusing to sell you parts for your car. Or Apple refusing to sell you parts for their computers. Nothing says you can&#x27;t acquire parts from another manufacturer, nor is there anything preventing you from performing the repairs yourself. (Other than maybe warranty terms, which is IMO not a moral hazard.)