Ebay is a bit strange doesn’t make sense for bid and buy over price items

http://www.ebay.com/itm/371122441268?_trksid=p2060778.m1431.l2649&ssPageName=STRK%3AMEBIDX%3AIT

The above listing showing 100watts solar panel, used old. However the price is as high as the new one if buy from Renogy. Sometime I just don’t understand it. Are buyer stupid? and ebay isn’t helping? or was it just fake bidding.

Same for both buying and selling.