http://www.donssmallenginerepair.com/csi/products/product_details.asp?PCAT_MQUE=100000002&PCAT_TITLE=New%20Power%20Equipment&PRODUCT=100000067&PAGE=2&no_redirect=true

This is the same model in the link. . It appears that it was about a $1,200 machine new. It appears to have very little use. I looked at it the other day. I found that the self propelled feature seemed pretty weak. It would not really move in slow and it barely moved in fast. It seems like I may be able to adjust the spring tension on the belt, however I was not sure. The guy selling said I could have it for $450, which could be a decent buy if it just needed to be adjusted.