That's exactly what Gameworx was selling them for 18 months, 2 years ago. $4500 cash on the button for Euro demo IM Sterns.

I added $500 to cost, cause $4500 was a bargain at the time. Its up to Joe Public to determine if the IM machines, used are worth anymore or less in 2013.
Obviously in QLD, because every man n his dog knows what Gameworx was selling them for, that's the honest price I gave.
People in other places may pay more ?

That is not what Gameworx were selling IM for, avatar yes , IM nope and yes it was a bargain at the time and was priced accordingly to get them out the door with no fuss, a quick sale if you will. No-one wanted either of these games back then. 
You spoke to gameworx, you ummed and ahhed over avatar, surely they told you these things.
Besides that was then and this is now, IM is almost impossible to find,the popularity has increased and so has the price.
It is worth what someone is prepared to pay for it not what you think it was worth 18 months ago.
Thanks for your input.