This hobby is just like s few other expensive Hobbies I partake.
Motorcycles and skiing.
There is so much good hardware out there that can render subtle changes in the experience you enjoy that you just can’t stop.
In skiing you could have 2 ski’s that are the same dimension but because of internal construction materials render a completely different experience and both of those you enjoy, especially given a specific set of snow conditions. Same for Audio equipment. The conditions in audio would be the recording (genre, mastering quality, instruments , voice etc). And your building a rig (boots,liner,binding,wax,ski edge angles) right down to sock thickness.