Seagate has introduced the Exos M series, a range of enterprise-grade mechanical hard drives available in 30TB and 32TB capacities. The two models, the 30TB CMR ST30000NM004K and the 32TB SMR ST32000NM003K, each offer a minimum of 3TB per disk and use a standard 3.
Sure it makes sense: Pretty much noone, but you, is going to buy them, and stocking shelves and warehouses with product costs money. All that unmoved stock would make them more expensive, making even more people not buy them. It’s inefficient.