Someone stated it earlier but sometimes backs will not be displayed because a seller probably feels it will deter potential bidders from bidding on a card that looks great on the front. I always include the back because I am one of those people that just can't stand paper loss on the back when making a buy for my personal collection

(BOOH ME!!!). Also if anyone needs image hosting there are many a free galleries and hell for the boxing collectors I know out there I don't mind hosting your pics

Gives me a nice reference.
Thanks,
-John