Overview
Build vs buy is a question of differentiation. Buy commodity tooling; build the workflow that is your advantage.
When to buy
- The problem is solved well by mature SaaS.
- Switching cost is low and integration is easy.
- It is not core to your competitive edge.
When to build
- The workflow is unique and drives revenue.
- Off-the-shelf forces damaging compromises.
- You need full data ownership and control.
Framework
Write the 3-year total cost of ownership, not just the build price. Maintenance, switching and opportunity cost dominate.