Comment by dsr_
That works for a conventional mouse: you've used one before. This one is a little different shape, a little bigger, ooh, no wires. That's fine: in five minutes you know whether it's OK.
How long does it take to decide whether you love or hate a thumb-ball? A big ball? A SpaceMouse? Has anyone who didn't use a ThinkPad decide to buy a keyboard with an integrated nubbin?
Sure, I can buy twenty devices for $200 each and return 19 of them. That puts 19 items into "open box" status, causes me to re-pack and re-ship and track 19 items, and makes 19 vendors vaguely cranky at me.
I get your point. When I had RSI in my right elbow and tried to find a replacement for a traditional mouse there were soooo many attempts. And I had to use them for a while both to see if they helped, but also to see if I managed to use them properly. Like, a mouse where you rolled a ball with your thumb I never got friendly with even after a few weeks.
In the end the problem was actually moving the hand away from the keyboard, so no tilted mouse, thumb mouse or track pad worked. A RollerMouse saved me. I even game with it now, heh.
Just lucky my company paid for all of it (and the ones I didn't use they got back by me distributing to others within the company with issues)