I've seen people giving away working computers, TVs, and treadmills "for free." When you email them, you don't hear back for a couple days, at which point you receive an email:
Oh, man, I'm sorry. Someone else came to pick it up this morning. But listen, I gave mine away because I just got a new computer/TV/diet pill for free through this website. Here's the link if you're interested. Great deal.
Lame. I'd like to post something for these guys:
Free kick in the pants to all shady marketers.
Except I'll actually deliver on mine.