I have recently cut down a bit and went quality over quantity. However, I have rifles such as the one below that are just not worth selling/trading because I don't think I would get my perceived value of it on the open market.
A 1979 production BDL "Varmint Special" heavy BBL 308 Win. My wife's uncle bought it new for silhouette shooting, had it bedded and floated and the trigger worked on. Most accurate rifle I own by a lot. I worked up a load (178 A MAX, 44 grains Varget) and took it to 600m. Consistently under .6 MOA all the way out.
It's a nice rifle from some of Remington's best years and it shoots very well. On the market it's probably not worth more than any other BDL so even though I have no use for it (I would be better served with a smaller varmint cartridge) I don't think I will let it go because I think it's worth more than it's worth, if that makes any sense.