If I buy a 100 dollar phone new each year I save 900 dollars and get 80% of the features of that 1000 dollar phone. Each year my new phone starts to get as good

If I buy a 100 dollar phone new each year I save 900 dollars and get 80% of the features of that 1000 dollar phone. Each year my new phone starts to get as good, or better than the phone I was getting 80% of a few years back. This also works for cars.