How does the RC213V S stack up to other 'race replicas' such as the Ducati Superleggera V4?

In the motorcycle market, many have tried to bring race technology to the streets, and the Ducati Superleggera V4 and BMW HP4 Race are pushing the boundaries of what's possible in a production motorcycle. They are cutting-edge technology, exotic materials, and performance that blurs the line between road and race machines. But the Honda RC213V S takes this idea to another level by being a bike based directly on a current MotoGP bike. It’s hard to imagine equipping such an electronic platform suddenly took the load off the legs or that it was a faster, capable ride compared to their ancestral machines. Do the differences matter enough to justify the huge price gap, or are these ultra-exclusive bikes offering diminishing returns at some point?