It happens to all of us sooner or later: despite owning one video game, we buy a second copy of that same game for another platform.  What is it about some games that spark us to double-dip on them?  On this week's episode of Power Button, Blake Grundman defends his multiple purchases of Shovel Knight while I rationalize not buying Mortal Kombat X at all.  It's the first half of a conversation about why we double-dip on some games and not on others and what it takes for a purchase to repeat, but before we can get to that, we need to spend an hour talking about the many versions of Shovel Knight's famous adventure and the latest installment of Earthrealm and Outworld battling it out.  FINISH HIM!  Download this week's episode directly from PTB, listen with the player below, find us on Stitcher, subscribe via iTunes, toss this RSS feed into your podcast aggregation software of choice, and be sure to catch up on past episodes if you're joining us late. Remember that you can reach us via , you can leave a message on the Power Button hotline by calling (720) 722-2781, and you can even follow us on Twitter at @PressTheButtons and @GrundyTheMan, or for just podcast updates, @ThePowerButton. Next Time: The second half of this conversation digs into the history of buying the same game more than once and discusses how some double-dips are better than others.