Connoisseur? Naw! Stop by my place and you'll see a messy collection of oddball things ranging from some old calculators to stacks of old books.
I received a Curta Calculator from my astronomy mentor, Ernst Both, when he got an HP-35 around 1973. I was one of his students; today, I can't look at it without thinking happy thoughts using a spectrohelioscope to understand sunspot magnetic fields. But that's another story...