While I do not consider myself an "old fart", my oldest child is currently in his third year of a microbiology major at university (let's just say that I'm on the "older" end of Gen X then).
While I personally pursued a career in IT, spending time looking at tiny things with a microscope is a bit of a family tradition since my father spent part of his career looking at rather nasty bugs during his time as a veterinarian.
In the early part of his career, my father had acquired a microscope where as a kid, I remember watching him using it and sometimes taking a peek myself at the microscopic world that it revealed.
That microscope has spent many years stored away in the back of a closet, however when my own son wanted to take up the family trade, so to speak, My father figured it was time to pass the torch (or in this case, microscope) on to the next generation.
While the old microscope still had lots of life left in it, it was missing one critical piece - the light for the microscope had gotten lost in the mists of time.
Since I never really had much use for the microscope myself, I did want to add my part to the passing of the tradition - and with that, a new microscope light came to be.