From my pre-sale data of 70 books on
@gumroadwhere people can choose their own price of $9.99 or higher: - 63% chose > $9.99 - 56% of those paid exactly $10 - Remaining 44% paid an average of $21.96 (range: $12.34 - $100) - 16/19 paying > $10 chose price w/o decimals