Yup. If we get to a point where older material needs to go overboard, it's going to be determined by a couple factors: age, number of downloads, and last download.
Examples:
- 20 years old with 2583 downloads including some as recently as 5 years ago = firmly in the lifeboat
- 15 years old with 1558 downloads but none in the last 10 years = might not be safe, but has a life preserver for now
- 5 years old with only two downloads = hope it can swim...