It does raise a question I was going to start a thread for.
How much gear do you hang onto for sentimental reasons, just plain fondling or because "I might use that one day"?
Or is what you own only a specific tool for a specific job and once that is all over it goes?
Me, I have a couple of film cameras that I used a lot in the day, I really like the build of, so I keep them "because I might use them one day". I also have some compact digitals that I really don't need but just can't get the steam up to move em on. The problem is they are not worth much.
I good motivator to sell unused gear is you re-purpose the value in it for something you lust after.