My balls got gr8 durability. ;]
Otherwise, maybe the type of shot matter : fairway, bunker, fescue,weeds,& ofc...water hazard...along with a purely "time-deadline" (which wouldn't b realistic...)
I think they should provide some other "infinite/unlimited durability" options (like the starter balls), especially when you reach some good level/tier (i doubt golf legends should worry about buying ball packs ).