how much does a kindle account cost
Letâs break down the math to see whether you plow through enough books regularly to justify the cost. At $9.99 per month, Kindle Unlimited costs about $120 per year. E-books on Amazon can vary wildly in price, from $0.99 to hundreds of dollars.During 2013, e-books on the Digital Book World best-sellersâ list mostly sold for between $7 and $8 on average (the price in the most recent recorded week in 2014 was $7.52).etâs break down the math to see whether you plow through enough books regularly to justify the cost. At $9.99 per month, Kindle Unlimited costs about $120 per year. E-books on Amazon can vary wildly in price, from $0.99 to hundreds of dollars.