Right, it's not that it's easier per se. It's just that usage dice create tension and doesn't require tracking every arrow used/recovered.it's not about ease so much as unpredictability & the resulting drama. How many times have you seen a character save a bullet with history or one that misfired for later or regardless of need bite their nails over the dwindling ammunition they have on them?
@doppelganger that's the point. Ammo is cheap, lightweight & easy to carry large amounts if you are tracking individual arrows. This way can also be used to represent the use of arrows off screen like moving from interesting fight A to interesting fight B