The machines are expensive but durable. Their main revenue streams outside of software are materials (which obviously have stiff 3rd party competition) and acce

The machines are expensive but durable. Their main revenue streams outside of software are materials (which obviously have stiff 3rd party competition) and accessories (most of which are durable, even those that aren't have 3rd party substitutes). They have no other reliable way to extract additional value out of customers. It's not right but it also isn't exactly surprising they'd choose to go down this path.