Eh, it's just one person selling it for that much?
Pricing error perhaps.

But I do wonder if there are people out there who judge based on the price and think that more expensive = better.

Off topic, but I've wondered what would happen if I was able to sell something like:
1TB 7200rpm Hard Drive: $100
1TB 7200rpm Hard Drive for Mac: $110
(and have them in store sitting next to each other)

Wonder if anyone would buy the latter, even if they are both identical.