I keep a lot of my gear around even if it is in 2nd or 3rd systems.
I have 3 Classe DR3 VHC amps and a DR7 preamp in use, the Vendetta phono stage in my main system and the Koetsu Urushi/SME V and VPI TNT have all been with me that long, and the Vandersteen 4A speakers in my second system have been with me for many years.
The Sota Cosmos/SME V/ Lyra Clavis in the upstairs system has been with me longer than that as well.
I have 3 Classe DR3 VHC amps and a DR7 preamp in use, the Vendetta phono stage in my main system and the Koetsu Urushi/SME V and VPI TNT have all been with me that long, and the Vandersteen 4A speakers in my second system have been with me for many years.
The Sota Cosmos/SME V/ Lyra Clavis in the upstairs system has been with me longer than that as well.