That's probably about right, but put it on eBay. Craigslist will typically result in low-ballers as opposed to eBay where some people seem to willingly overpay.
On the other hand, eBay can be a pain and CL is cash and carry (assuming you don't have to deal with some weirdo).
For what it's worth I got nearly $300 for my 16GB iPad1 in July on eBay