Another example is David Walsh, the founder of MONA in Hobart. I think I read this in his book, that his interest in art and antiquities started because he nee

Another example is David Walsh, the founder of MONA in Hobart. I think I read this in his book, that his interest in art and antiquities started because he needed a way to move his cash winnings from gambling overseas back to Australia. You can't simply bundle up all your money and board a plane as there are limits on how much hard currency a country will allow you to remove - but not for artwork.