Yes Logitech is super expensive. And it has uncanny "feature" of stopping functioning eventually, I used to replace Performance MX every six months once...
I've been testing for past year and half instead this: https://www.microsoft.com/accessories/en-us/products/mice/sculpt-ergonomic-mouse/l6v-00001
It's something of in-between, not quite vertical, though highly angled and it forces your wrist to be elevated, which I consider the more important part of equation, this should avoid the pain relocating to further up.
I used to have terrible pain, couldn't work every third day. That is all gone, though this mouse requires bit of an effort to use eschewing some comfort.
This is the perfect thread I have been looking for.
I have that Microsoft mouse and keyboard. To be honest, the keyboard is great and feels very premium. Of course it takes time to get used to, the keyboard far more than the mouse.
One cool feature of the keyboard is the numerical keys that are separate. I have them on the left side. So I type in numbers with the left hand and use the mouse with my right.
This is very convenient, of course you have to teach yourself typing numbers with the left hand. I'm a right hand guy, so it took a while. And you have to change your system from coma to point if your using european annotations. This is so you can use the point from the numerical keyboard.
As for the mouse, it is failing. The left click is only working when hitting the upper end of the button. So I'm looking for a new one. And the keyboard has some F1-F12 keys that get stuck form time to time. For me, the mouse is alright but it's far to small for my hand. My hand is taller than a 6 inch smartphone, so you have a reference.
I want to get a real vertical mouse but most of those you can't program buttons and that is a NO NO.
I gess using a space mouse would be an option but I don't really want to spend money on that. Apart from yet another thing on my desktop, there's simply no space.
So this Logitech MX with programmable buttons looks great. I just need 1 or 2 buttons for pan and zoom.
If anyone buys it (me for christmas ;) share your experience.
BTW I never had any issues with pain even before the Microsoft Ergonomic mouse, it is simply to prevent getting hurt in the first place.