This has always been the problem with the hyper-rich. They are just so... boring.
One of my favorite comedy bits of all time is from Lewis Black, talking about some of the people brought down in the financial scandals of the early 2000s (Enron, Madoff, etc) and how they wasted their money in such... uncreative and boring ways.
"They just bought things. Things they didn't even want or use. They just acquired. They bought dozens of cars they never drove. They bought works of art they put into warehouses and never displayed or even looked at. One guy brought a 30,000 dollar umbrella stand. Think about that. Because a lot of us have an umbrella stand and we call it bathtub. My parents just bought a 30,000 dollar used car. You could sure store a lot of umbrellas in there. Or you could just drive to where it wasn't raining.
One of them had a luxury watch collection worth several million dollars, with individual watches worth tens of thousands. That's insane. If I had that much money to spend on a watch... I wouldn't. I would hire someone to follow me around and tell me what time it is. At least that would be creative."
I follow a Youtuber that reviews cars. About a year or two back he finally purchased his dream car, a 2005 Ford GT Supercar. He shared a video the day he got it and his happiness was absolutely palatable. He broke down why he decided to get it, how he budgeted for it, how he accounted for maintenance and fuel costs, why he got this particular car, fully admitted it was the largest purchase he had ever made, etc. He both loved the car and took the purchase seriously.
Compare that to some Saudi Oil Baron or Beverly Hills Trust Fund Baby with a garage full of Ferraris and Porsches that they bought on whims but never drive and that they don't even enjoy on any real human level.
Even if you think spending a huge amount on a car is a stupid purchase I figure most people can at least respect the difference between those two versions of "Bought an expensive car."