I have a domain that just a few days ago started getting a bunch of offers on Epik -like 4 a day from different visitors. It was obvious they weren't real offers so I switched it over to Bodis parking. So far its about $10/day in parking. Still can't figure out where the traffic is coming from.
I don't think domains have the ability without content to give any true indication or any indication at all of a domains potential. I have some domains moving gigs with crap names load of content and great names with high searches getting nothing as nothing hosted. Submit backlinks eg though my sites and get that anyway.