Just because you can buy a home with cash doesn't mean you should.
I mean, no rich person I know knowingly makes a poor investment. Buying a boat is entertainment, for yourself or others. Vacation home, etc. But just buying a home in cash is weird. It's a poor investment choice. You are losing money, on purpose. If you're as rich as you say, then you're already getting advantages with your bankers/financial advisors/etc.
I keep about 100K in my everyday bank account, and that alone gives me advantages under the table that are not offered to others. 100K is peanuts, but that's all it takes to get special treatment. So you should easily be known on a first name basis by everyone at your bank, and treated like royalty. The money you'd spend on a home (say a 2 million property) can easily be discussed with some finance guy at the bank over lunch, as he might know of some investment opportunities, etc. I like doing this seeking new opportunities, rather than go to the same financial adviser. When the right people know you have money, you can use that to your advantage. Talking about it on a message board is weird. But yes, if you didn't earn it and really just stumbled into it, then it makes a lot more sense. You don't understand what you have in order to properly use it.
As for golf, I used to have a membership at BCCC here in Austin, but the condition of the course has deteriorated and is no longer worth the price (the clubhouse is still nice though). My back no longer allows me to play though.
If you ever wanna hang out, join a FoH meetup.