Lots of good discussion on this can be found on bootstrapping forums. Generally accepted wisdoms is to do 3 price tiers, general at 1x, 1.5x and then 3-5x the

Lots of good discussion on this can be found on bootstrapping forums. Generally accepted wisdoms is to do 3 price tiers, general at 1x, 1.5x and then 3-5x the base price. Add-ons per tier can be case studies, extra chapters, specific examples, videos, offers for your time, etc. Most people bought mine at the top tier, which to me signals that I underpriced it by a lot: https://book.serversforhackers.com https://book.serversforhackers.com