Some interesting comments re selling crunch.
I think this lets them focus on different kinds of crunch. Rather than each new book needing to include stats for weapons, spells, etc...you can focus on new additions that complement existing. For example, a rules for blood magic, rune magic, etc; rules for ammunition; etc. each of these could be completely optional and added based on GM/group preference. You could then have a range if accessories, such as cards, that could be POD/PDF. Have the weapon cards...no problems...the file could be updated with the new tweaks/add-ones which you can use as needed. This would really let people dial up the crunch to their comfort level.
I like the idea of subscriptions...sort of. When you’re paying a monthly fee, you expect to get stuff monthly (kinda like Patreon?). We’ll be doing that already for HLO (at least those if us who go down that path), so not exactly how that might look/work for CGL.