you may invest it to real estate/land, large companies' stocks like microsoft, google, disney, etc or you can holding bitcoin until the price go to moon again.
I think which you give the option, in this, Land is better and also he has a big amount to invest, but stocks exchange is just like Altcoin trading, But in my opinion, now he has come in bitcointalk, so better is that just choose the bitcoin, actually, in bitcoin letter bit risk, and bitcoin is more safe-sound way, So choose the bitcoin, may be in future, You realize bitcoin is more better than others.