You could drastically increase the value if you develop it and get it highly ranked for the main keywords... though that may take some time. Since you already had this domain for a couple years I would guess you're in no hurry anyways.
Thanks for the replies so far.
I'm with you on the development angle, I just don't have the time at the moment. Then there is the question as to what exactly to make out of it.
Ideally, it would be an SEO service, but I myself only know very basic SEO techniques, so It would probably have to end up being something along the lines of an SEO forum or maybe something like ScriptLance(kom), but specifically for SEO. Dunno.
Not that good at putting price tags. But this sounds like a great domain for the right person (an SEO freelancer of sorts) and would be great developed (into a site selling SEO services/tips). But I don't see much value other than that.
-Sam
Hold this domain for few more years and before that develop it and let it rest. It will start earning more value. Nice name. Nice coining of keywords. As for now this domain can worth high xxx $ to low xxxx $.
If you don't know much about SEO i would recommend NOT developing it. If a real SEO pro wants to purchase it I believe it would have more value as a clean slate for the new owner to work their magic.