JMOfartO:
Well, I'm a senior citizen, and in my over 50 years of firearms ownership I've bought, sold, traded, or given away many, many firearms..
I will agree that IF you have a particular firearm that you have a reason to want to keep for one reason or another, (e.g. I still have a pos 25cal.Galesi because it was my 1st new pistol, bought wayyy back in 1966, and it's still a clunker) but really if you have a firearm you don't feel warm and fuzzy about then there's certainly nothing wrong in parting with it.
I would also say I would never sell a firearm unless I had another one lined up.. I don't think selling a firearm to buy more video games, or watches, or whatever, makes good sense, but that's just my opinion.
Sooner or later each of us will buy a firearm or two that somehow we find lacking in whatever qualities we thought it had when we bought them... Sell the suckers.. Sooner or later each of us will, probably, find a firearm we really, really (think) we have to have, and therefore need to sell something to buy something.. Do it.
For example I recently sold a pristine "A" grade HK P7 to help finance a new HK P2000sk V3. Some folks say don't sell such things because they aren't making any more, etc. but I had three.. Heck, I still have two, but also now have a very, very nice HK P2000sk V3 that I like so much it has become my 9MM cc choice, and I've put my other compact 9's in the gun safe.
I'm not a "collector", I'm a gun lover, and I shoot what I own. Just having something to look at simply does not "move me", but I have no problem with those folks to whom collecting is a fun past time. To each his/her own..
So I would say sell any firearm you aren't in love with, but replace it with some other firearm you really, really want. If THAT firearm is somehow lacking, start the procedure all over again until you are happy..
I would also suggest buy quality, rather than quantity.
Just personal opinion, if it goes contrary to your opinion, no offense intended.
Best Wishes,
Jesse