I agree that many N. robcantleyi hybrids tend to be...less spectacular than their parents, although there are some that I can appreciate (talangensis x robcantleyi, burbidgeae x robcantleyi, and hamata x robcantleyi are some of the better ones in my opinion). Regardless of that though, N. robcantleyi is probably extinct in the wild, and it's exciting to see someone with the means to produce more of this species. Although BE has produced thousands of plants and the market price will probably take a nose dive in the future like you said (I'm still seeing N. robcantleyi going for $100s, for now at least), it's more of a conservation thing to me than a monetary thing. It reminds me of situations with plants like Sarracenia jonesii - decently widespread in cultivation and not worth large amounts of money in the trade, but still valuable due to the state of populations in the wild. When I see huge amounts of endangered species being produced in captivity, it's not breeding or market values that come to my mind first, it's the conservation value. Even if these plants cannot be reintegrated into the wild, it's comforting to know that we will have a large and stable population in reserve for generations to come.