Remember, by being wealthy, we frequently have to pay a lot less than people who get by month to month. There should be no shock here.
On the other end of the scale, though, are the subsidies carriers pay to anyone who switches and trades in a quality device. When my partner joined my plan T Mobile paid a $700+ subsidy for his iPhone 11 in exchange for an iPhone 8.
So customers across the entire income scale finance. It’s just a matter of how lucrative that financing is for the customer. At the higher end of the scale where the customer has more choice it’s usually a much better deal.
This is a well studied phenomenon that wealthy people who can afford to pay everything on day 1, buy in bulk and all end up paying less than poorer people.