As jeff says nothing lasts forever.
Even Flojet do have faults occasionally, however they do seem on balance to be more robust, their pressure switches seem to last longer.
I have my original 60psi pump which is 5 years old now, however for the last 2 1/2 years it has been in tandem with a second 60psi, one pump for each hose reel.
You get what you pay for (nearly always!)
Alex