Who else is using old cables/interconnects, and is happy?

sdv0983, I used to have original Purist Aqueous. They were excellent when introduced. Colossus original, introduced later, was so much better, incomparable. I didn't try current Poseidon fluid or Aqueous Contego.

Monster Sigma are not too bad in some set ups but the rest I don't think so. They pass some signal, sure, but they can't really do singing.

I went through a system revision beginning two years ago. I bought a Purist Audio Design (PAD) Colossus silver balanced cable in the early nineties to connect my Wadia CD player directly to my Krell amp. It was a crazy move to spend 1200 on a single 1 meter cable in the 90s, but it was the only one that I tried from the cable company library that reveled the detail I wanted. Fast forward thirty years and I had three new cables checked out from the cable company and compared them to the old PAD. The synergistic Research won that shootout, but my wife and I were amazed how competitive the old cable was! There are great used items out there, you need to give them a listen.

I forgot to mention my star cable, an ancient bright purple Madrigal digital cable. Cheap to buy but good luck finding one. I have heard many but nothing has bettered it yet and not really trying anymore.

I got this from a friend with a Wadia/Mark Levinson system who went all out analogue.

Still using some old cables from 20+ years ago. I was a “part time” dealer for acoustic zen, harmonic tech back then.. Mainly so I could buy my cables at a reasonable price. I have added some Canare 4S11 for speaker wire as I needed a shorter length, I also broke down and bought a Shunyata USB cable to see if there is a difference in sound from using a cheaper stock computer cable. I saw a used .5 meter USB cable going for $4K on Agon.
I THOUGHT about getting it to see if there was actually a sonic difference..  but came to my senses and bought a new First Watt SIT3 amp instead for less..  I think I made a good choice..  IMO.

I could literally open a cable retail outlet if I still had all the cables I have bought and sold - still have a lot of them with a few exceptions - the uber expensive ones.

For a good while I have been using Kimber KCAG, Purist Venustas IC, and Kimber 8TC.   Had them all 10+ years in and out of the system.  Best balance I have found. 

PC's are Wywires and Kubala Sosna Fascination.

The 8TC has to be the bargain of all time IME.  I have had these 25 years at least.  They always end up back in the system at some point.

I did spring for a Shunyata Denali SV2 power distributor and Sigma XC PC in 2020 and it did make a huge leap in enjoyment of my system.