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.
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.