Mostly because you own better-made, better-sounding gear that has already lasted 5 – 10X longer than the cheap new gear you can buy!
Read the next four FAQs for more on this.
Nothing you can buy new for sensible money is built like your old hi-fi equipment, or made in Japan. I regularly service and repair equipment that has come in for its first visit in 40+ YEARS. Reckon your Sonus will be working in 40 years time..?
But what about all the improvements in technology..? Marketing BS. With increasing labour costs, ‘improvements’ focus on making gear cheaper to build. Compare the weight and sound of old and new amplifiers or turntables and you’ll quickly get the idea.