All of them, some more than others.
Marlin 782-22 magnum (Extremely accurate)
Mossberg 1500, 338 Win Mag (Wanted a 375H&H)
Winchester 670, 25-06 (Needed the money)
Winchester 94BB, top eject-375 Win. (Needed the money)
Winchester 94, 25-35, 1907 Mf Date (Wasn't using it)
Remington SPS/DM first edition 300 Win Mag. (My best friend wanted it enough for me to let it go)
2-Remington 742-30-06. (Belly button guns)
Baikal 12 gauge single. (Given to my oldest)
Winchester model 62A 22 S/L/LR (I inherited and passed on to my oldest)
3-SMLE Mk IV 303 British (Two were given away, they were common and cheap at the time)
Stevens 410 bolt action. (Traded to my son for 10-22 take-down)
Argentinian Mauser 30-06 (Neighbor needed a hunting gun)
2-Cooey single shot 22LR (Again, cheap and common)
Cooey repeater 22LR (Neighbor needed a 22)
But the worst was a pre-64 model 94, 30-30 (Traded for previous 25-35 to Step Dad, he used it once, sad ending)
I tend to hang on to things now, they aren't costing me anything, so why not?