bought back 30 BTC at 755, riding the wave, i have done this many times before so don't be nervous about my coins 
EDIT. and another 30 BTC at 752

EDIT. and another 30 BTC at 752
you will regret it

edit: I mean I think the price will drop even more

Well the nice thing though is that he still has more bitcoin. So while he would have had MORE if he had waited to buy back, it's a bit like catching a knife and could easily go the wrong way. In this scenario he still has more BTC then buy and hold, but less then if he had been able to perfectly time the market. He could ride small waves all the way down accumulating small chunks of bitcoin along the way, all while earning more BTC then buy and hold- yet less then the more risky method of calculating the total drop. Even so he could actually end up with even more BTC if he times each wave down properly.