Million Dollar Password and 1 VS 100 got axed way before they should have been. Both of these great game shows deserved many more episodes.
MDP was also CBS' last attempt at a primetime game show, before CBS went on a primetime-game-show-strike, which still continues to this day, ever since MDP was cancelled 3 years ago.
Power of 10 was CBS' idea of a practical joke, just to see if Carey would work well as host of TPIR. CBS never intended for Power of 10 to last long and they made it a point to get rid of it as soon as Carey was moved over to TPIR.
Now, as far as recent game shows are concerned, I could see GSN acquiring Million Dollar Money Drop, Million Dollar Mind Game, Who's Still Standing and It's Worth What, but all of these game shows lasted 12 episodes or less, so GSN would run into the same problem that they ran into with Power of 10 and Million Dollar Password. Unless GSN only airs 1 episode per week, they'll be rerun-abused till who knows when.