Phones are getting more expensive
Bring it back is a way to rent a new phone
It’s like renting a car, people rent because cars are expensive
If you want to keep same phone for many years, you don’t have to pick the highest end model.
You can buy used phone too, the phones that are brought back after 2 years are sold used
Considering how much I use my phone , $400 for 2 years would be a deal