Buffett has more money socked away than most countries. I just don't know what he is gonna do with it.
I read an analysis that said his years of great returns were due to leverage and loans and in the last 5 or 10 years he has underperformed the SP500. I was too lazy to research it for validity so take it for what its worth.
If you read Warren Buffetts biography the dude is a total whackjob. I truly don't believe he cares about money other than that is how you keep score.
Finance is his only interest for work or fun. His wife left him because that was literally all he talked about. On top of being worth millions and millions and still only eating at McDonalds when he had coupons.