There's simply too many people who will buy at ~250-280, don't expect a lower drop than that. If somehow we go below, don't expect it to last long and grab your cheap coins.
I think one factor that effects that is how fast the drop happens. I remmeber, when the price was around 450, then people used to say if it would go to 300, then they would buy 50K worth of bitcoins. But the drop was happening really fast, and a lot of them didn't. However the high 200 , and the low 300 does look like a stable bottom for now.
Point is as the price gets lower it takes less people to literally buy the entire "sell-able" supply... remember not everyone is selling and not everyone has their coins on exchanges or online at all for that matter.
At $200 per coin, I can literally buy all the bitcoins for sale with no issues... Other people who aren't broke (Less than $200K income per year) can join in on the buying and that's what is happening now and preventing BTC from breaking $300. Now the 2015 pump is on the way so good luck to all!
