Where'd you get it?
http://www.opelinfo.com/ has it for ~$515 US but their distributor
http://www.aetools.us/vagusb.html sells it for $950
If it were $200 to $300 dollars I think I would save a bit and do it. Maybe it'll show up used in the classifieds but until then a $36 dollar clone that might or might not work is worth the savings especially considering I may only use it once.