okay. a guy runs a website and brings in $200 per month. he pays $20 for hosting so he nets $180 per month. to buy him out you offer $1080 - 6 months at $180. you get the website and no money for six months. after that you earn.
Is there a website where these sites are advertised for sale?
It would all depend on how much work needs to be put into the site.
assuming you could just change your adsense id and go. that would make acquiring sites a real good idea. just like cyberproperty.