Man, I hate to break it to you but he's going to have a hard time selling it for that these times. Granted, I haven't seen pictures of it yet but I see some really nice boxes on Craigslist every day over and over again for that kind of money. Unless it's getting-out-of-jail money, or rent, he should hang on to it as long as he can and hope the economy starts to pick up.
FWIW, I bought an older Snap On box a couple years back off Craigslist for $300. (yeah, that's three hundred dollars) It is certainly an older model but the thing is built like a tank so unless it gets swallowed up by an earthquake or blown away in a tornado, it will probably outlast me.