Online, here and a few other sites as well.
I'm not saying that both the spine and the back are deal breakers when it comes making a purchase or not, just that in my opinion I feel that it's drab. They remind me a lot of the old MCA and CBS FOX VHS back covers also the giant silver box that...
Cover art I would say plays a big part in films getting noticed and potential being bought buy customers, the more eye catching it is, the more it's likely to be bought. Kino could learn a thing or two about that, as they have had some great front covers, but the spine, back cover, and disc art...