Reg fee 5000 uniques a month isnt special at all; more like 100,000 uniques a month would be special. Don't really know what this domain could be used for.
In "Appraisals", "Reg. fee" means it is worth approximately the value of the actual domain registration fee ($8 - $15 generally), in the appraiser's opinion.
You do have some traffic here that could be built upon, but the domain name, though cute, is BOTH hyphenated and in the ".ORG" ... and I think that is the reason for these "Reg. fee" appraisals thus far. I would recommend further development and increased, consistent traffic to build valuations, and appraise the domain name for Reg. fee - $30+, IMHO.
Best of Luck, Sukey.
I think that the name itself, especially with the extension and the hypen, does not actually worth much. I would say $25.00 with the traffic, good luck!
However if you were to cash on the traffic yourself like load the site with pop ups etc, you might generate $5 for a short time before you lose all your visitors.
Hard to say but those are your options
Good luck with it!