Value is complete for one user
Pricing: Per-seat looks scalable but most seats go unused
Growth: Individual adoption, no network pull between users
Retention: Held by habit, data history, and switching cost
Collaboration: Comments and sharing are decoration, not structure
Value depends on multiple participants
Pricing: Per-seat reflects real usage density
Growth: One user pulls others into the workflow naturally
Retention: Held by collaboration density and network effects
Collaboration: Core workflows break without multiple roles