Sorry but i don't think a 100$ price drop is even gonna do that much for Sony. I would argue that a 100$ price drop for Nintendo would raise demand a lot more than a 100$ price drop for Sony at this point.
If sony is able to get it down to 400 or 300$ you may see the demand begin to spike though. If you want to get those casual gamers you need to hit 200$.
currently playing: Skyward Sword, Mario Sunshine, Xenoblade Chronicles X