It started over 35 years ago. Had little money, so I would work to earn enough to buy the highest ranked equipment in Stereophile that I could afford. Mostly class C, maybe B. I had three boys and the house was too noisy for any serious listening, so the hobby went on the backburner for many years.
We moved about 3 years ago and I now have a better listening environment and no noisy kids (occasionally Grandkids). I now have more disposable income and my components had aged. I began the process of upgrading everything starting with speakers. Then dac, then amp, then preamp. A second upgrade of dac and various cables throughout the process. I'm at a happy spot.
Final touch is a new Salamander rack which delivers next week. I'm still using a $100 rack that's 30 years old.