[quote name='jerfgoke']Also, what about Zone of the Enders 2 for PS2? Or, for that matter, Gungrave (PS2) and Ephemeral Fantasia (PS2)? None of these are super-rare, but there's only a handful of copies on ebay at any one time and they seem to sell for higher than expected prices.[/QUOTE]
I sold an used ZOE2 for $15.50 before shipping on eBay on July 4th. I can pick it up at Blockbuster used for $16.99 before taxes and B2G1 savings. Also, the July 4th weekend tends to depress prices by a few dollars.
I've been selling new Gungrave: Overdose for $13.99 before shipping this week. (Ah, a 40% margin. Thanks, CAG!) Of course, that isn't the Gungrave you're talking about.
I sold Ephemeral Fantasia a few months ago for less than $10.
A neat feature on eBay is the average selling price. As long as you know what you're selling, you can find the average selling price on video games midway through the listing process. I use it for research. The feature had been broken for the last month, but it looks like they fixed it in the last day or two.