ive seen on ebay $80 shipped (was thinking of getting one when live cashback was 25% which would make it $60) and seen some on craigslist in my area for $80 also.
I just checked ebay and cheapest is $85. Amazon $93. There is the scorpio one you are talking about with instructions/software all for $75 on ebay though. Craigslist would be worth a try as well or someone on here.