The real Prime Day play for 3D printing isn't the gear discount—it's the software updates you should actually install first. Prusa just dropped firmware 6.6.0 and slicer 2.9.6, Bambu pushed Studio to 02.07.01.62, and Marlin hit 2.1.2.8—all the foundational tools that make your printer reliable got refreshed, but nobody's talking about it while chasing $100 off hardware. That $180 racing wheel and Wi-Fi 7 router are shiny distractions; the California 3D printer surveillance story deserves way more attention because regulatory pressure on AM is the existential threat, not a flash sale. Skip the impulse buys on discount printers without understanding what firmware version ships with them—check the release notes, update day one, then decide if you actually need the new toy.