I think like any hobby or passion, it goes in phases.
For me, way back I went thru buying as many "cool" looking cheap knives as my meager pay would allow. As well, it was the same for firearms.
Then, when I started having to carry/use knives and firearms for real, my hobby changed. Now it wasn't how many, what they cost, etc., it was how they performed. That came exceedingly more important. Especially when I was in the position to carry what I chose.
Unfortunately, that led to me seeing knives, firearms, gear, etc. more as just tools. I needed to care for them, just as my carpenter grandfather had his. Yet that was the extent.
I left the work I was doing, and picked up firearms as a hobby again. Knives still didn't gain the "hobby" level. That is, until about two years ago, my young daughter got me a pocket knife for Father's Day. Not an expensive one mind you. Just a blister packed, okay manufacturer knife.
That got me to pull out all the few "real working" knives I had. That led to "hey, lets see what's out there now." Now, I am buying, modifying, and even making my own.
Oh, but the one I carry almost daily is the one my daughter got me. It does what I need it to, and I believe in not carrying different things unless needed. So thank you my little girl.