Judging by his last post (below) he's not bothered about the short term price swings.
I am back

Been busy doing other things since I sold my house for bitcoin, and haven't really been following the price that closely. I check every so often and lo and behold it is back to $660+ right now!!!!!!! Well it looks like my $400K investment is going to make me a millionaire very soon. Now back to what I was doing... enjoying life.
lol you actually believe that? He may be "enjoying life" when he "checks every so often" and the price is in the $600 range, but I can guarantee you he is shitting bricks right now (notice how he stopped posting since then...)