Probably because ordinary people can't afford them because ordinary people aren't paid enough. And so their addressable markets are smaller than they could be a

Probably because ordinary people can't afford them because ordinary people aren't paid enough. And so their addressable markets are smaller than they could be and already saturated from historical sales. They should've made their consumables like rollers, wheels, and filters more expensive and less durable just like HP inkjet printer supplies. ;)