I always have to laugh when people say photographers are gear obsessed... "Oh this stem is .0001 grams lighter so I must have it!!!".
It's FAR worse with Musicians.
For a camera it's which body, then which lens. Then a few accessories.
For a musician (like saxophone or clarinet) it's which horn body .. vintage or modern. Which pads and resonators .. how high of keywork, tension & type of springs, type of lacquer, neck design, mouthpiece - how the mouthpiece was faced, reeds ... ligatures .... then if the player has a bad embouchure and air support it doesn't really matter. lol
Cameras are simple by comparison of "gear"