Anyone not living under the poverty line can in theory save for a luxury good, but that doesn't mean they otherwise live a luxurious lifestyle. In my country you see some really poor people living in pretty terrible conditions but who own luxury cars.

America too. I grew up on a town where you’d see a fancy Camaro parked in front of a mobile home.

It might be worth it. A family in my street migrated from Kosovo to Belgium, and returns every year for the holiday. They aren't rich but have a second hand BMW. It's the only car that survives the trip from/to their holiday, so it's cheaper than buying a new car.

You do however VW outsells BMW ten to one. The market share of companies like Rolex or Gucci is tiny compared to Apple’s.

The most expensive iphones don't have 45% market share.

That 45% includes folks paying them off every month, folks buying new cheaper models, folks being given other people's old phones, and folks buying used/refurbished phones. It doesn't mean they aren't a luxury good: The newest, latest iPhones are still some of the more expensive on the market, and a lot of onlookers can't tell one from the other.

The SE is only $400. I imagine most of the market share isn’t people buying the $1000 model annually.

Yes. Here it is also because you can’t get it anywhere at the price you see on their website. It’s much more expensive and so not worth it.