Brütal Legend comes a bit sooner than at other retailers. Handing over cash for the game before its Rocktober 13 release nets folks the attractive Brütal Legend LP sleeve seen above. Aside from displaying artwork, the sleeve serves as a holder for the game disc itself when, for some reason, it's not in your console.
Unfortunately, the official Brütal Legend blog doesn't list Best Buy among the retailers who are offering the free in-game guitar and early demo access. As such, we've asked EA for more information on the Best buy deal and will update this post when we hear more.