The text book industry inflated the cost of everything by making things huge, with mostly meaningless full color pictures everywhere. Go back 100 years and compare the size of a math book to present day. Math hasn’t changed a whole lot but the size and weight of the books certainly has.

I’m not sure about those… But I do know what they don’t have to pay extra for is DisplayPort which is far superior to Hdmi.

Thank you for the call out to Service Merchandise. As a kid, that store was awesome.

Creality has had a treadmill printer for a long time now. You are correct, this isnt anything new.