Yeah, I don't think they would be sell too well considering their price, most people wouldn't even think about it lol. But they are worth it.
They said they aren't going to get any other models like the uniform weighted ones because they are niche products, and I'm assuming that the variables weren't selling well enough for it to be viable for them to introduce new models.
I'm just hoping that they aren't planning on getting rid of them for good once they sell out.