Seems like you haven't been to South Korea for example. I see makeup shops literally on every corner, tremendous mall culture (which is sort of dying in America) and highend stores are jam-packed with newly minted millionaires.
Not to say Americans don't love to spend, I think America has exported this culture to the rest of the world which is that every holiday is an opportunity for sale, put debt on credit card and get addicted to the dopamine rush of shopping. I don't think its unique to America anymore.
There is no need for the shopping culture to be imported anywhere, it already existed pretty much everywhere. Just check out the malls in the first world and the local markets in the less developed places
I think the difference here is that is this of "everyday people" or just high-earners, Costco only has several stores in China and remains a high-end exotic market, drones are still expensive "toys" here, new iphones often cost a month's salary or more.
The drone makers have a reason to be amused at how much Americans love their products.
Here is how Costco in China opened: https://www.youtube.com/watch?v=2UfO4gpML4g
Not to say Americans don't love to spend, I think America has exported this culture to the rest of the world which is that every holiday is an opportunity for sale, put debt on credit card and get addicted to the dopamine rush of shopping. I don't think its unique to America anymore.