Man, sometimes when you run into things like
this, you really lose hope for humanity.
With an excellent feedback score like that vendor has, it's clear that someone simply mistyped the price. That's all.
I've been on eBay since the beginning and personally have over a thousand positive feedbacks with a perfect score. Heck, I used to bid remotely from restaurants using an HP 720 handheld with CDPD radio back around the turn of the century.
I've bought almost two thousand items from eBay over the past 13 years, everything from a $1 plastic part to $300 iPads, to two cars costing $17,000 each. It's the first place I go look for books, computer parts, collectibles, new clothes, you name it. I quite often bid for stuff from HongKong, which comes quicker than you'd think to the USA, and is often a fantastic deal.
By being careful about seller's feedbacks (e.g. checking to see if someone recently might've hijacked an old user id and suddenly has new sales), I've never been burned, either. I've actually made friends, too, via email exchanges.