The playset question is good...I have no idea. It's no secret that action figures have been waining for awhile now. Video games used to be a nerd thing, and now it's pretty much an everyone thing. Kids aren't like us; they didn't start with figures and work into video games as they came along. Video games are already here and HUGE, so they grow up with them in the house and being played around them. Heck, I know I won't stop playin' all the sudden when I have a kid - so my kid will be familiar with games as well.
For one reason or another it seems that games always win out over toys nowadays. Like I said: I imagine it's because they're so normal now. Then, with the raising prices, you got a choice: Toys or games? The games usually win. Heck, they're almost less expensive as well. Plenty of great games just for download out there, and some of them have some great replay value (though I'm not gona say that's true across the board - there are a lot of games built just to get you to buy the next installment as well). One way or another, I think the rising price of toys is the final shot in the war between toys and games.
But hey...it's all oil. Who knows how long that'll last, eh?