Health What store has the best diaper prices? What store has the best diaper prices? Amazon consistently has the best diaper deals, but Target is a close second. Buying diapers in bulk at a warehouse club will often not get you the best deal.May 1, 2017 Related Posts:Which diaper is best for babies?What's The Difference Between Microfiber and Micro-Fleece?Is selling baby diapers profitable?Do you really save money using cloth diapers?