More localised printing (we don’t need them at home really) means less transport and to and fro of goods. Less inventory holding, less money tied up in the whole system of getting a doo-hicky to my house. Busted part on my bike, fetch one from 300 yards away.
Less money tied up => cheaper goods.
More quality production at cheaper prices. Good print designs for eg cups will flourish. There will be a license fee in the patent period, but to sell them, they’ll have to be cheaper.
