You'll have to book a trip to Canton, Ohio to see the exhibit when it launches in mid-July. Thankfully, however, it's included with the usual admission fee ($24 for adults). You probably wouldn't want to go just to see these holographic coaches and players, but they may tip the balance if you were already toying with the idea of paying tribute to football history. And look at it this way: in some ways, they'll be more engaging than virtual singers on a distant stage.