Well, if I could get a full ork army for $100 I'd do it just because it's an insane deal and I have the space (and I wouldn't do anything with it so in a month when you realize selling it was a poor decision, I can just trade it back). But if you're looking for a reasonable offer with the intent to use it buying another army... I don't need an ork army.

EDIT: Wow, Nick makes exactly the same offer I do while I'm afk to answer a phone call from my boss - that 15 minute delay is a son of a bitch.