I discard them if not reusable.
I wish I had kept some of the arrows from the past; my first deer and another one I used to shoot an antelope doe, mulie buck (both in WY), 2 white-tail deer(Indiana) and then broke it on an Ontario bear the following spring.
Around 1971 I bought a Bear B Mag from an elderly fellow who operated out of his house. I believe the town was "Redlands (? I don't think I got the town name right, near Muncie?), Indiana". He had a box full of Bear Razorheads that had each killed a white-tail deer. Those were the days when very few bowhunters killed a deer. I think the success rate around then was 3%. The deer herd was estimated at only 45,000 animals.