I don't need hours. I need minutes. That how long it takes to sell a bunch of shorts and buy some longs.
I am not man enough to do short speculation in this market. Perhaps going speculatively long is my way to go, or just forget about it until there is low-hanging shortable fruit at $7k...
Meanwhile, while we go to 270 and maybe below, your idea of "buying all the bitcoins" is exactly what we don't need. We need more bitcoins in the hands of more people, not less.
When the price goes down, the ownership concentrates (manipulator/whale accumulation, large speculator buying). It's during the booms that new people buy trickles and coins are dispersed. Both are good to keep the coins in the hands that value them the most.
I don't think a lot of big coin holders are going to buy more coins. Maybe a few.
There might be money on the sidelines, smart people waiting to come in - in a semi-institutional way if the price drops too low.
But if you look closely at the exchanges you can see that its the same players passing the coins back and forth - some losing money (because they are in denial) and some making money (because they aren't).