I was an engineer for 40 yrs and i still have some of my original tools. Most engineers i know do get attached to certain tools like that particular flat blade or phillips that just fits the hand better, provides better grip and doesn't break at first use. I know car mechanics that only buy Snap-on tools cause they are rated the best with a lifetime guarantee but boy they are expensive. Not for amatuer mechanic tho and same could be said about basses. 😁
Everyone can come up with reasons for keeping a collection of whatever it is they like or use in their job as tools.
I have some sentimental attachment to certain basses, not all, just some. Others i'd sell tomorrow but dont need to if i'm honest so its not doing any harm having them.
I do like the idea of one or maybe 2 basses. My choice would be a P and J bass but i'd miss my Sandberg VM4.
I also have a wee notion for a MM Sterling Stingray but no rush to buy one.
Dave