I went thru all of my spare parts crap last night and methinks I have wayyyy to many spare glass tanks, o rings, insulators, spare bases, RBAs and assorted other small items.
Now if I stick with Crowns, Kayfuns and Subtank Minis for years moving forward, I might get to use a bunch of it.
I was kinda mad until I realized that I likely only spent a couple hundred bucks on items that average less than a buck. I would be more upset if I was sitting on something like 20 new in box iStick 20's or something that is nearing obsolescence.
The only advise I can give someone starting to stock up is to avoid buying many different tank brands/models. PITA to buy 10 different O-rings, replacement glasses and other spare parts.