Growing up, my family computer was set up with a very specific model of Logitech trackball, the one shaped like a standard mouse with the off-center ball that r

Growing up, my family computer was set up with a very specific model of Logitech trackball, the one shaped like a standard mouse with the off-center ball that rests under your fingers, not your thumb. It's the only trackball of its kind I've ever seen, every other model is either a tiny thumb-ball, or an enormous whole-hand deal. They stopped making them years ago, and now you can only find them from scalpers on Amazon for upwards of $4-500. It's frustrating, because I'd love to get back to using a trackball, but every other model seems less comfortable to me than a normal mouse. Edit: It's this one: https://www.amazon.com/Logitech-Cordless-Optical-Trackman-USB/dp/B00006B9CR https://www.amazon.com/Logitech-Cordless-Optical-Trackman-US...