I would sell all my Bitcoins if they get to 550$-600$.
But that's what I say every single time when I'm waiting for the right price, they I always want some more but before that the price drops. That happened this time as well

Dude if you are really planning to sell your bitcoins on that range, I suggest you should ready your coins cuz that's coming before this month ends

(just a speculation , I strongly believe on it though)