Parts you've removed - keep or sell?

Tripping over stuff. Been there, let me think; in the late '80's, I gave away a 8 3/4 rear, with springs, 5 Holley carbs, factory 340 pistons and rods, kick down linkage, etc.
I could kick myself in the ***, daily. If you have room, keep it, might need it later. Otherwise, sell it on here, as it is not made anymore, and somebody is dying to find that part, in order to finish the car.
If it doesn't sell, trash it, It's all free to put it in here.