From the article I linked: "...capacities larger than that only available from a few specialty vendors at eye-watering prices"
From what I can tell, this was true when it was written, but has changed since with the Samsung QVO 8TB SATA only at a roughly 25% markup compared to a 8TB QLC M2 2280 drive. When I searched last winter it was 2-4x expensive as soon as you crossed the 4TB mark, with 4TB and under being similarly priced between SATA and nvme drives.