Yep and be prepared for at least some of those to hit the market. You cant seriously think that off exchange investors are all going to just hold the coins when they get sold below market rate.
Simple solution:
Sell above market rate. Like right now for $600.
So, then whats in it for the buyer? A killer deal! No slippage. Try buying 200k coins right now without going over $600 per coin. Impossible!