Hold it or maybe invest in a gambling site and I do hope you didn't waste it. This is one of the living testimony that holding bitcoin is still the best way for having a great number of money. 40 bitcoins is a very large money. I hope this guy take the advice of other members to hold his coins. That was 2 years ago where bitcoin was too cheap, and now it multiplied almost 30 times.
Yes holding your coins is the best idea. not interested in investing in any other casinos then you can save it in your safe wallet and sell your coins when you needed money. 40 bitcoins if we convert it into the present price it is huge money you can settle your life. If I have this much bitcoins, i will stop working and start to enjoy my life with that money.