Both of those probably retain some value. Property may appreciate.
I really don't think you guys have thought this through. All your suggestions on how to spend underline that it's basically impossible, even when that's your object rather than enjoying it. So now who are you giving money to? It's the only thing you can do with it. Children, good works, politics, immortality via a wing of an art gallery is popular. A building at your University... Gates is trying to rid the world of disease.
When i say you can't in not making euphamisms. You just can't. Lay out a serious plan that you would want to try and spend it and you see it's not practical or even close.
Replace Sting with every artist you like and think on the logistics of it. It doesn't work. Rival Leno's Garage. Only stay in 5 star hotels. Private Jet. 5 mansions on different continents go nuts. Your idea of no expense spared, lap of luxury. Price it up for 70 years worth.
Do you really need a 100-million yacht and a 20-bedroom villa? No.