The best examples of box art tend to be those with a timeless design. Those you can look at ten, twenty, even thirty years later and say, yup, that still looks amazing. Super Mario Bros. is one such game.
https://kotaku.com/when-every-nintendo-game-looked-the-same-and-was-bette-1536542559
These great pics by Bryan Ochalla remind us that, even with dog-eared corners, that bright yellow background and cartoon art looks as good in 2014 as it did upon release in 1985.
Actually, you know what, I think it looks better
Bryan Ochalla [Flickr, via Game & Graphics]