Beaming up @ivan_101Agree that going back to ink from laser etching doesn't make sense though I see Ivan_101s post. Curious, are the cardboard tucks etched with a number? My Astra SPs, purchased a little over two years ago have the tuck boxes etched with the number 8071787902 with a 12/03/18 date etched next to it. Believe the first 6-7 digits could be a plant number as a recently purchased King C. Gillette razor came with a newer tuck of blades where the first 7 etched number were identical. Wondering if the availability of inked blades could just be older inventory that is floating around. See this with years old Derby blades and older made in Korea Dorco blades (new product past few years that everyone raves about is from a new plant in Vietnam) still floating around the on-line retailers.
Ivan_101, why did Gillette move back to ink? Did they need the newer production equipment for the King C. Gillette blades? Once the new equipment was acquired there is no reason to go back unless there is a higher priority need for it.
When I returned to DE shaving back in mid 2018 I would up purchasing Derby blades to start instead of Astras because of all the "fake blade" comments due to the shift from ink to etching. Luckily my Derbys were post 2016 production that work well though I did eventually acquire some Astra SPs that are a bit better lasting for an extra shave or two.