I will be getting these graded for sure.
I think Ebay and craigslist are great indicators for price...we have a market that is hard to get into sometimes for a newb, especially non-technically inclined people, so these coins make it super easy for people with no experience to "get into" bitcoin, hence the much higher price tags...plus the risk of selling on ebay warrants a greater price-point to weed out the scammers.
IMO craigslist would probably result in higher prices on a NPV basis once you factor in the potential to getting a chargeback. You can collect the cash, or have the person send you bitcoin prior to handing over the coin and once you have it, short of robbing you there is nothing they can do to get the money back