If I had 1000, I would sell 500 bitcoin for business purposes. I love to make my own start-up. I have a few awesome idea which I think can change the world on a small scale. And the other bitcoins I will hold and try to sell them whenever it hit $40000 or higher. Then I will amass bitcoin again whenever it goes lower than $20000
Maybe, he just got the right keys to open his bitcoin stash. But he's really lucky to have that amount of bitcoin. Who knows, he has the chance not to be slave with 9-5 jobs anymore? He can use it for many important things to get self-sufficient in life. Or maybe, he's still mining via his solar energy.
I will definitely live a simple life even if I have that amount. Invest in more tangible assets that will grow over time and look for potential businesses that you can set-up with.