I own a bunch of gear from 10 years a go and some much longer than that, but I listen to none of it. My son has my Yamaha NS 1000 Monitors(1979), those I would like to listen to again with better electronics than I had back in the day along with a much better understanding of proper set up and room treatment.
What’s in your system today that you also had 10 years ago?
For me, it’s only my turntable, an LP 12, though I did have a Kore installed in 2015 so it’s not quite what it was 10 years back.