I actually really like this one. Easily passes the radio test, and it's quite clear. DomainFan would be clearer, but it's still giving the clear message 'I'm a fan of names', so works well with a forum, blog, reseller site, etc about names or domains.
Neat sound to it, rolls off the tongue well, and I can visualize a slick logo for it.
Obviously, from the other members' comments, this name affects people differently, so it would be hard to valuate... to some people, it's near zero value; to the right person - a highly interested end user - they might be willing to pay a lot, xxx or into x,xxx, but of course that's the elusive dream end user.
But, just giving you one man's opinion - the name struck me as being very cool, very brandable and slick. I personally could see a large site/company/service built around this name -- wish I had it. If I were looking for a name like this to dev (which I'm not) I think I'd be willing to pay in the $200 range. So, there's one real-world valuation for you
GL