You can do that in planned economies, and historically that's what's been done. You let people try products with the surplus, basically acting as a VC fund, and

You can do that in planned economies, and historically that's what's been done. You let people try products with the surplus, basically acting as a VC fund, and if people buy that product at a price beyond that of production you make more, otherwise you make less. A market for labor and for consumer goods has been a part of every planned economy. It really is the optimization and the logistics that was the difficult problem historically.