well i heard that microsoft GoD are highprized so that they don´t kill the physical stores around the globe.. because you cant really compete with GoD Steam stores.. If not game stores starts to demand games in USB sticks, witch makes the condition better if you rent or sell games.. And of course there is going to be locked usb sticks...the future is not on a cd. 
   
Its not how much gamerscores its all about on which games and how hard them wore to get.. right. I mean if you see some guy having super mega gamerscore but only on the suckiest games.. its worth nothing right.