With even the most cheapest cell phones, they still can take decent higher res pictures.
When I see an ebay listing for a specialized item that's actually desirable/semi-rare, it's makes me think twice when the seller is either too lazy (or trying to hide something) to take a handful of pictures showing different angles/close up shots.
This is 2015...there is no excuse for a single thumbnail picture of product. It just makes me wonder what's hiding.