I think the top-ranking comment about complexity is off base: they're not inventing inkjet printing from scratch. It's basically a bunch of existing modules in a new package, presumably with the promise that you will not need to buy subscriptions or DRMed ink cartridges.

Is robustness and reparability a compelling pitch? If I'm counting right, I owned eight different printers in my life. Dot matrix, dye sublimation, inkjet, laser. I don't think a single one ever required any serious repairs beyond replacing consumables, clearing paper jams, and pulling out lint. I upgraded as the technology improved. My first laser printer needed about 4x as much desk space as the current one.