How Much Does It Cost to Build an E-Commerce Web Application?

A transparent cost breakdown for BestSexToys.online — a premium adult wellness dropshipping platform built with Next.js, React, Prisma, and Tailwind CSS. With three new high-ticket categories (AI companions, humanoid companion robots, and lifelike companion dolls), blended AOV jumped from $85 to $1,368 and Year 1 projected gross revenue climbed to $8.5M–$15.5M.