I really like this domain! However, as mentioned and inferred, there are some "obstacles" here, which could either limit the potential re-sale value, or possibly prohibit it altogether!
I do not believe you can "re-sell" .BIZ domains, per se. However, if your company was a .BIZ company, that could be sold. Seek legal advise on this, though.
As far as being a domain name, I would think that without the plural version, a buyer would not pay a premium to own it. These two points are exclusive of one another. Research these points. Good Luck.