5 More than 3 exist, especially because some members from this forum have tested it during the testing period.
6 Huh? If you doctor the Veer to 2.2.4 you can TTS all you want so that's not rare at all.
8 Quite easy to obtain if you live in the USA but not outside of the USA (let alone getting it work; who knows in which countries it actually works). I would like to have one though if it supports the Dutch 4G network

(my WiFi Touchpad is awesome but sometimes I wish I could use it on the road with internet, like I did with my Motorola Xoom 2,5 years ago before the TP came out)
9 Not that rare, I guess. I've seen it on ebay.de multiple times, even recently. It was officially released in some European countries IIRC so at least a few hundred of 'em must have been made.
10 True, but I wouldn't call it rare. It's actually damn easy to obtain a Pre 3, even after more than a year has passed.