The one feature that would have me consider using one of these keyboards would be the duplication of the center keys. An early training as a classical pianist

The one feature that would have me consider using one of these keyboards would be the duplication of the center keys. An early training as a classical pianist has given me fairly good hand posture, so I've never had any wrist pain or anything despite doing a great deal of typing. It also means that my hands float, so I can reach keys that require some lateral motion, which means that keys like TYU/GH/VBN are crossover keys for me -- I might hit them with either hand. So the obvious design for me would be to have a split keyboard that has those keys on both sides. Why choose a split? Just duplicate the keys!