Alternate systems for helping to thin out typewriter collections:

Designer William Morris' weighing system:

“Have nothing in your houses that you do not know to be useful or believe to be beautiful.”

I once had a collector friend who loved standard typewriters, so his weighing system was as follows:<br /> - If it weighs over 25 pounds, keep it<br /> - If it weighs less than 25 pounds, sell it off

And naturally, minimalist Marie Kondo's system:<br /> - Does it spark joy?

Joe Van Cleave also had another video for creating a minimal collection based on categories of typewriter which may also be useful for some: https://www.youtube.com/watch?v=0Ej6kd1FsnE

Shi, W., Wang, L., & Qin, J. (2020). Extracting user influence from ratings and trust for rating prediction in recommendations. Scientific Reports, 10(1), 13592. https://doi.org/10.1038/s41598-020-70350-1