SpeedySPCFan wrote:[...]
Nice find, but, I have two questions:
1: Is there anything good about them besides the ergonomics (how's the sensor ,etc)?
MS claims they were the first 1500dpi sensor pointing devices. I'm not hugely choosy on that front but they certainly feel accurate. Also, in the trackball world, five buttons and a scroll wheel are still not standard, let alone back ~2000 when these things were made. But it's mainly the ergonomics.
2: WHY ARE THEY SO EXPENSIVE?!
Supply & demand. MS stopped making them just as they were getting popular, and most users are very, very enthousiastic about them. Those who have them simply won't sell in most cases. It's telling I've bought two being sold by next-of-kin after the user died...
That said, it's the same as with everything else on eBay - if you want one *NOW* with no effort, you pay through the teeth. If you're patient and follow ads on other platforms you can get them for a fraction of the prices you see there. I've been actively looking for about nine months now and found four for low to moderate prices locally, having passed on a fifth as it started getting pretty expensive.