Great collection!
What do you use inside the BB (I think you like similar draw)?
I avoided falling into that particular rabbit hole by telling myself:
look, this (BB) is a piece of vape gear that MAY be good but is it really going to provide you a better experience then some small mod with kayfun on top? Remember, you like to vape coil gunkers (custards, hybrid tobacco, Mana, etc) so frequent rewicking it every 6-8ml is going to be a PITA. Is any of the extras capable of the airflow you like (I like it real tight - Hastur the smallest, Berserker 2nd, etc)? If you decide to get, then go for dna60 with USB but then, it's not available in your favourite silver...
Yet, I like a form factor and general idea of it. Being a collectable/adjustable is a cherry on top.
What is your opinion?