I have and still use my Head Graphite Director (more than 30 years) as my primary racket today. Though, throughout the many years I have tried the newer and evolving rackets, my primary racket is still the racket of my choice.
Also in my arsenal of firepower, are my second choices of the Rossi, Head Elite Pros & Prestige Pros, PS85, RX23 and a few different Fischer Vacuum sticks. These were the ones that stayed on, the newer ones which came along into my life, ultimately stayed on temporarily only.
I still trot around with my 30+ year old Rossi racket bag when i go to the courts. Much to the astonishment of the younger generation.
Still very much prefer the heavier designed rackets of the yesteryears.