I have a feeling most people do finance them. FWIW, I just bought a new iPhone, but mine's a 13. Still, with tax and an insurance plan and such, that sucker still came out to around $800. And, get this, a few weeks ago, I got an email from Apple, congratulating me for paying off my phone, and saying I was eligible for an upgrade!
I think some plans give you an option where you just pay so much per month on the phone for 2 or 3 years, but it's at zero percent interest. I did that with my previous phone, an iPhone 7S, that I bought back in early 2018. I was actually fine with the old 7S, but the battery was starting to go...and this was its second battery. Also, the charging port was messed up, and it was getting to the point that it practically took an act of Congress for the thing to recharge, or be recognized when I tried to plug it into the computer, etc.
My housemate bought a new iPhone a couple years ago. I forget the model, but it was a big one, and over $1,000. I think he paid it off over 2-3 years, as I know he wouldn't have been able to cough up that kind of money all at once, unless he put it on a credit card. And his phone before that, was also in excess of $1,000, and he did the payment plan where it was zero percent for 2 or 3 years.
Not to be judgy about it, bot both of my housemates have nicer phones than me. And tend to replace them much more often. Maybe that's one reason why they rent from me, and not the other way around!
Now that I think about it, remember back around the beginning of the year, where Fidelity was offering a deal that if you put $50 in a savings account with them, they'd give you an extra $150? I think they gave it to you like the next day, and all you had to do was keep it in that account for 90 days?
Well, I jumped on the deal. Also signed my uncle up for it. But my two housemates? "Oh, I don't know. That seems like an awful lot of work." I even told them that I'd GIVE them the 50 bucks, and help them set it up, but still it was "Oh, I don't know. That's too much work."