A "vacant plot" in this context might be example.ccTLD not being associated with a sufficiently large share of Example Ltd taxable income declared in CC, or some 3rd country maintaining suitable double-taxation treaties with CC. (While in the same interval not having their registry lock in forfeiture of voluntary ownership transfers, in order to qualify for some appropriately scoped "currently no commercial intent / obviously not a squatter" exemption.)

That way you would be forced to keep it personal.. or suffer reduced sale price, as the new owner would need to backpay the minimums you were exempt from, or take on some risk merely leasing from you until the lock eventually expires - as you remain the true owner and all the payments and paperwork must cross your desk.