Keeping backup equipment?


I recently had to send my amplifier in For service. In its place I picked up a used Schiit Vidar to tide me over. 
So now that I have my main amplifier back and it seems to back to making me happy I’m wondering if I should keep the Schiit or sell it. On one hand it makes sense to have a backup ready to go, on the other my main amp has
been flawless for several years. So it sort of seems a waste and maybe someone, like me, may need one on the cheap.

so for those running separates, do you have backups stored away for emergency’s?
gochurchgo
Let’s see how many amps have I had go out... in fifty years... actually more like 60 years... 0 failures.
I have two systems but one runs fully balanced with mostly no option, the other single-ended, so I cannot exchange electronics.
My audio system has two sets of amplification. When I want to really sit back with a fine single malt and get involved in the music, I turn on my tube mono blocks using CDs as my source. When I just want to have background music on or tunes for a party, I switch over to my SS amp. This saves life on the tubes and gives me a backup in case I need service on my main system. Both systems use a tube based preamp and the same set of speakers so its not exactly like having two separate systems but it serves my purpose well.

J.Cjip