I hear you on the sentimental aspect of this rentagreement. I have a hard time letting go of my bikes when I think about all the miles and great memories I’ve shared with friends on epic rides.
But, it doesn’t have to be this way. With a collection of 3-4 bikes you can re-purpose them for different riding conditions so that you’re still using them all.
I have a rule that if a bike goes about a 1 year without any use I can justify it’s sale as bringing happiness to another rider…and then I try to find a buyer that will appreciate it.