I live in a video game centric household. Though it's only my wife and I, we are currently in possession of three DSis, one DS Lite, two Gameboy Advance SPs, two Gameboy Micros, one DSi LL (thanks, Japan!) and two PSPs (1000 generation). Due to long train rides everyday, we want to make sure that we enter the fray with twin guns blazing, and plenty of games to play. Therefore, the power mats would combine forces and make sure that our well of gaming entertainment never runs dry!
(and naturally we have our iDevices, but I believe that goes without saying)