Other than your carrier give it for free or cheap, I don’t really see the reason why should you buy new phone. I’ve been using Redmi Note 9 for past 3 years and recently got my had on Poco F5. I don’t see the point of my ‘upgrade’. I sold it and come back to my Note 9. Gaming? Most of them are p2w or microtransaction garbage or just gimped version of its PC/Console counterpart. I mean, $400 still get you PS4, TV and Switch if you don’t mind buying used. At least here where I live. Storage? Dude, newer phone wont even let you have SD Card. Features? Well, all I see is newer phones take more features than it adds. Headphone jack, more ads, and repairability are to name a few. Battery? Just replace them. However, my Note 9 still get through day with one 80% charge in the dawn. Which takes 1 hour.
I am genuinely curious why newer phone always selling like hot cakes. Since there’s virtually no difference between 4gb of RAM and 12gb of RAM, or 12mp camera and 100mp camera on phone.
There are people that like new things, there are people who prefer older things. I am willing to spend money on a new phone every 2 years because it is my main computing device. I, also, don’t miss a lot of things of older phones. I never used as SD card, I never replaced a battery, and I haven’t used wired headphones in a decade.
I like my iPhone 14, the LiDAR gives me a ton of cool applications, the camera takes the best photos I’ve ever taken before, it will be kept updated for the next 5 years and the always-on screen is very useful for unlock-free info.
If you trade-in a fairly new phone, you can heavily discount a new phone purchase as well. It’s more like leasing a car vs owning a car. Pay for the time you use the phone, return it while it still has value in the 2nd hand market and get a fresh phone.
On the other hand, my brother sticks his phone in his pocket all day and doesn’t look at it at home. He bought an iPhone SE a few years ago and it just works. He would argue buying a new phone is silly as well. But we use our phones very differently and so our purchase habits will be different.