They are Refurbs, which can mean they cleaned the case, turned it on, looked for a power light, and boxed it up.
I bought a refurb'd monitor from ubid.com once, it had a cracked case and was pure junk.
I'd be careful.   Make sure you can return it.  If you have to pay for return shipping, you could be out $50 bucks just to look at it.
Art