Why don't we see more plateau clarinets?

 I just finished overhauling this Leblanc Normandy plateau clarinet and am wondering - why don't we see more of these? They sound great, are easy to play, are a real help for people with small hands, thin fingers, arthritis, diabetic neuropathy, and hand injuries. I've overhauled both Boehm and Albert system versions and both sounded great! They are a bit harder to work on, I admit, and I'm sure that manufacturing costs are a bit higher, but what a wonderful option to have available! Does anyone know if they are still being produced by a major company in wood? Can they be special ordered? Why are they so rare? Feel free to comment....

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