Well your in their so might as well. I did mine. It was fine but I know I'll have the vehicle for many years.
If it matters my harmonic dampener on my Mini Cooper s is nearing 20 years old and has well over 200k miles on it.
They don't go that often and you will have bad vibrations before failure but like I did I was in their changing pulleys and belts so just added a nice fresh one for the hell of it.
Your call and your money but nothing wrong with swapping with new.
