One thing I've always noticed about different games on eBay is the tendency for high prices that people pay, and then high prices they don't pay. Sometimes, when a game goes up in demand and down in supply, the price increases and folks start routinely paying more the game. But other times, a price starts to increase for no apparent reason, and thanks to the magic that is eBay's sold listings search, it can be found out that people really aren't paying the inflated price. Rather, the only copies that sell are bids that go for considerably less.
Let's say there's an NES game on eBay, maybe about 25 listings available, average BIN 18$. But the only copies that have sold in the past months went on auction for about $6. VGPC still states the average is about 8$ or 9$. What's with all the people listing it at $18 - $20 BIN? Obviously the demand isn't there to easily get that much, maybe one sale in a month or two at that price.
Guess I just needed to rant about it. But this can seen with so many games on eBay, where demand is not high, the game is not rare, but the value is still perceived to be higher than what most will actually fork over. How, and why does this happen? My only guess is people who aren't necessarily motivated or interested in moving their stuff. If it sells it sells, if it doesn't, no worries.
I sell a little, and personally, I always price things where I know someone is gonna bite and not a - "crazy number" and I might let go of it - kinda price. But that's me, I wanna make cash quick so I can spend it on my collection.