Great article. I think you should consider an alternative subscription model.. one time access.

I am one of the demographic that initially used the site after either a HN or Cnet link (can't remember which one). I actually purchased a domain or two and made a mental note that I will use the site next time I am in the domain market, as I found it very useful.

For someone like me, I only look at domains once every few months at most. I just don't have an active appitite for purchasing - but when I do, it is a big priority. If you offered limited time access for a $5 a pop fee or something similar, I think you'd have a large audience (myself included).