I did overlook one point: If you can manage to contact players for the Yankees, they have the money to pay for vanity domain names. You might be able to leverage their vanity and competitiveness since there is only 1 such domain name (and many of them) and get them to compete for it. But professional athletes and celebrities are probably not the easiest people to get in touch with.
Appraisals are meaningless, though, in the absence of an economic demand. You and I both know that there is no "inherent" market for Yank.ee. So unless you create the impression in the minds of your potential buyers that there IS a demand that is bigger than the supply, then you won't be able to ask for much money.
When I say that appraisals are meaningless for domains like this, I'm not saying the domains don't have value. Yours does. But it's much more subjective than objective. And I'd prefer to discuss marketing strategy than to debate what dollar amount a domain name will sell for when there is no market for the commodity in question. If you get someone who is interested and has the funds to pay a few hundred, congratulate yourself on that profit. Then move on. If you can successfully sell this domain to a nonexistent market, then you have what musicians call "chops" as a salesman! And you should then turn your attention to selling domains that are ALREADY in demand.
Hope you don't mind the honest feedback.
---------- Post added at 07:19 PM ---------- Previous post was at 07:09 PM ----------
Sorry for writing 3 posts on this, but I really like your domain name as a name. And I'd like to see someone use it.
As an electrical engineer, I should probably point out that EE has a meaning of its own. One demographic you probably haven't considered is electrical engineers in the American South. Perhaps some student or professional organization might take an irrational liking to the domain, as you and I both have. If you search for "southern engineering" or "georgia tech", that might reveal some possible candidates.
If you try email marketing on this one, my advice is to keep the message short and sweet. No arm-twisting because all arguments to buy this domain are going to fall flat (because they don't make sense). Just appeal to the person's eyeballs. As follows:
How about this as the name for your new website?
Yank.ee
Contact me if you want it.
[Your signature and contact info]