$0.
It will be an interesting UDRP case from Internet Corporation for Assigned Names and Numbers
Maybe they won't even need the UDRP to get the domain.
There are live trademarks on uspto.gov.
I suggest to drop this domain name and never look back.
Completely agree with @YourBestTrader and @Sheogorath. This is a trademark infringement if you are planning anything related to domain names. Suggest you drop it quickly, or take the $100 offer!
Having said that, ICANN does have other abbreviations other than Internet Corporation for Assigned Names and Numbers:
International Conference on Artificial Neural Networks
International Community Association of Nizhny Novgorod (Russia)
I Can Create A Nice Neighborhood
Inland Counties Association of Neonatal Nurses
But I think the word "accredited" makes it worthless, sorry!
I'd suggest running a free auction on Namepros or give it away... one persons junk is another persons treasure. There is always a small chance someone could build something unrelated to domains on that domains and be happy... and you could get some of your reg price back