i dont think thats the case, i have seen them for sale, otis cannot control the market thats called a monopoly i can remember they got fined massivly a few years ago for price fixings, anyway, our top bods have them.
i did have 3 gearless mashines a few years ago, we supplied a laptop with a dos program which could read otis data.
would also like a tool, a couple of times had a lift shut down on me.