One advantage is: if you do not have tools and alignment skills, replacement stylus goes into undisturbed cartridge.
Do you have fixed arm or removable headshell?
I would ask Grado, if body this old, new stylus wise?
Next, check what they would sell for with a new stylus
Now decide: keep same sound, invest to sell, buy something new?
or, both: stylus for Grado AND something new.