is PR 1,2,3,4 domains which does not have more than 15 backlinks (archice.org) and not indexed on search engines are valuble or useless?
Well, there is no site hosted there, so it's no surprise there are no links to it. PR is not just about the number of links, but also many other factors. I don't think the domain has too much value, but if the name can be used for a site it has some value, perhaps $8?