I just ordered this frame this morning. I figure that for less than $20, I can't go wrong.
Proof that it cost less than $17:
I spent most of the rest of the day looking at parts for it, and have come to the realization that a $17 frame doesn't necessarily equate to an inexpensive bike.
The funny thing about the frame is that they're selling it on eBay with a starting bid of
$9.99 plus $30.99 shipping, or
Buy It Now at $19.99 plus $30.99 shipping.