I have this many sets and it’s because I have this many keyboards. For me it started as a soldering project which I had never done before during the pandemic. I really enjoyed it so it went to more builds, hand wires, 3d modeling switch break in machines, making cases, experimenting with different layouts like orthos and alice, buying a few really high end keyboards, joining communities with artisan cap makers, etc. this hobby can be a fun creative outlet. Personally my keyboards are just rotated, my fiancé takes different ones to work, my friends will borrow a keyboard for a while. Sure, I guess technically it’s mostly a waste if money but, a lot of us enjoy it so, why not just spend some cash on what makes you happy.