It’s exciting to buy a shiny new tennis racket.
Players always play better with a brand new racket (for a little while until the excitement wears off!)
Of course, the racket companies know this; that’s why they come out with dozens and dozens of new models each season.
They know that most players never actually wear their rackets out or break them; they simply grow tired of their old stuff.
Some experienced, savvy players stick with their old faithful through thick and think knowing that it’s practically impossible to wear out a racket.
They simply restring their old racket frequently to keep it playing as good as new.
Of course, if you don’t agree with all of this, you can throw a temper tantrum and smash your old racket to pieces (it feels good sometimes!) and then go out and buy another one with a perfectly legitimate excuse.