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
If the amp on my music system went out, I'd scavenge from my home theater system.  But if you don't have a home theater system, maybe you should hang onto the Shiit...
Keep it I have 4 systems in the house 1 in my workshop and an old Yamaha for the back deck.
Backup amps? I have a collection! I don’t consider them backups. It’s a portfolio of different amps with different characteristics. 
Four 'systems', each rather 'site specific'.....

'Back ups'?  Not really in our audio universe....

More 'puter relics, Yes.  Some of which are still 'doing', but at different tasks than previously...

A newer and the oldest are all audio all the time.
(That, and what they're up to takes more space, however.*L*)