Op, I have an iPhone 5s Space Gray 16GB Factory Unlocked by Verizon. No scratches, looks brand new. But looks like you've already got offers for less than retail value. If I were you, I'd just wait until the new iPhone comes out. That's when all the old ones are cheaper.
I've been trying to access http://virwox.com/ all day. Seems like it's had a connectivity issue, but with all of these websites going offline recently not sure what to think. Thoughts?