One Audible credit costs $14.95.
It can buy a 5-hour novella OR a 126-hour epic. Same price, wildly different value.
I built a free tool called GetCreditWorth that scores 730 audiobooks by a simple formula:
Value Score = (Hours × Rating) / Price
Top pick: The Decline and Fall of the Roman Empire — 126 hours, 4.5 stars, $20.34. Score 28.0. That's $0.16/hour.
Worst picks: short books under 10 hours at full price. You're paying $20+/hour.
The difference between best and worst credit use? Over $40 per book.
Site: https://getcreditworth.com
Code: https://github.com/863683348/getcreditworth
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