Attention to sites with fake pagerank! Especially if you are willing to buy a powerful domain, be more careful than in the case of link exchange. Not only because of the PR, but most because these sort of web spaces (with fake PR) have no considerable backlinks, no SERP position, and sometimes are even banned by Google.
www.csscaptcha.com – first, we’ll check if the declared PR is for real or fake, here: http://www.digpagerank.com/index.php?url=www.csscaptcha.com&dc=18 (the data centers indicate an orange 6 PR, non confirmed – first suspect) and here: http://www.seologs.com/pr-check/pagerank.html (response: Can not verify Pagerank at this time – suspect #2)
From Google search engine, typing link:http://www.csscaptcha.com/ the results is 0 – not normal for a PR 6, for sure.
Google Banned Checker: http://www.iwebtool.com/google_banned?domain=www.csscaptcha.com
Checking the link polpularity now, http://www.iwebtool.com/link_popularity
Confirmed zero links from Google, null visibility.
Now, would you buy a domain like that ?