it's a little tougher with this phone. It might dip to $200 in 2 months, but I doubt you will see it below that for a very long time. The SIII dropped relatively quickly (what, 3.5 months?) down to $100, but this phone is different. The SIII is about taking customers away from Apple and to a lesser extent, other Android companies, so they need to put out every advantage they can get.
The Note 2 is such a different phone, I don't think you'll see too many people on the fence between the iPhone and Note 2. I know some iPhone users will be making the switch but not too many people will be switching from iOS to Android on a freakishly large screen, it is literally a 180 degree change. This phone is simply for the "niche" of people that want an awesome phone with a huge screen and that's a pretty large "niche". But the majority of those people are already on Android and I bet a lot of them are already with Samsung so Samsung knows that if you really want this phone, you're going to buy it no matter if it is $300, they don't need to go below that until sales calm down and people who really want it but are a little strapped for cash can grab it at $200.
I don't see this as a phone where it is going to sell better with a lower price point, just because it is at a lower price point. The people who want it, already know they want it, they don't necessarily need the price to tell them that (although it would be nice if they'd have started it at $200)