I have a collection of various Zeiss lenses, because my proffesional photographer friend told me he enjoys them. They’re amazing, but I refuse to even share how much I paid for them, since I’d probably cry :D I also have a few from various brands like Canon, Sigma, etc.
In terms of cameras, I always bought a new one, used it for a while, sold it and bought a new one. I settled on the Canon 1DX Mark III in the end, I think I’ll use this one until it dies.