Over at Amazon, you’ll find Bambu Lab’s official Amazon storefront offering its P1S Combo 3D printer with AMS for $499.99 shipped. That’s $50 off its usual $550 price and marks the return of the lowest price we’ve tracked for this model to date. The P1S Combo briefly dropped to the same $500 price last month before jumping back up, and today’s offer gives you another chance to grab it at that record low, with Best Buy matching it as part of its …