It isn't NAND production. The companies that package the NAND are the ones that want more money per GB on higher capacity m.2 sticks and SSDs. It doesn't cost them more to fill an SSD with NAND beyond the cost of the chips. High capacity drives could have the same per-GB has smaller drives, but they would rather have higher margins.Would be nice if NAND manufacturers didn't slaughter production so high capacity drives (4TB+) would continue to fall in price...Or if the vaunted XNAND would actually hit production...
What is a good deal. If you can deal with SATA they are as cheap as $150. If you want m.2 those are around $190. Apparently there was a decent x4 NVME drive on sale for $160 recently.Personally I am waiting for a good 4tb deal but awesome to see prices continue to drop for ssds