I go through different "gun phases" just like most people.
Phase 1 - cheap revolvers
Phase 2 - Varmint Rifles
Phase 3 - Semi-auto 9mm's
Phase 4 - Assault Pistols (semi-auto; late '80's)
Phase 5 - Military Style Rifles
Phase 6 - High Capacity handguns and anything "banned"
Phase 7 - Machinegun
Phase 8 - O/U Shotguns
Phase 9 - small carry guns
Phase 10 - The "Classics" - Pythons & 1st Gen Colts.
I'm sort of entering into a new phase - becoming interested limited production high-quality semi-autos. I'm still in the acquiring mode for the classics, military style rifles, and carry guns. Every now and then I'll purge the things that are just taking up space and don't "do it" for me anymore. Here's a short list of things I've sold in the past:
1960's S&W Model 10;
INA knock-off of a S&W snub-nose .38;
Remington 700 22-250;
'50's Chinese SKS;
Closed Bolt Ingram M10;
Open Bolt Cobray M10 Carbine;
Taurus PT-99; Ruger 10-22
I'm sure there were others, but that's all I can recall for now. Of those, I don't really regret selling any of them - well, maybe I wouldn't mind still having that Model 10 - it was a great shooter. But, the money acquired from selling these guns went back into buying higher quality firearms. I think I may be ready to purge a few more things, but before I do, I want to have something "earmarked" for acquisition.