I think in this case the seller wasn't deliberately trying to screw someone over, he just didn't know what he was doing. It wasn't the greatest listing in the first place, and he clearly googled the game and copied the first picture he found. Unfortunately, the pic he posted was of a converted Robotron cab.
After receiving many messages no doubt, requesting further pictures, he took some himself (they were crap too) and tried to put right his auction. He didn't do a very good job of that either.
Crap seller. Not a crook, perhaps just a bit dim.
But there's a lesson here, as a buyer of anything on eBay, make sure you know exactly what you're buying. Especially when parting with several hundred quid.