[arethuza]

Amazon chose to invest money in growing its business - presumably with a lot of new products and infrastructure to support them.

Government and defence IT is a service business - where do you invest the money?

Note: I'm not saying they don't invest the money, just curious where it goes.

[pixl97]

Features, requirements, scope, datasets. It's not like services are cheap and easy to make.

The other part of .Gov contracting is integrating so tightly that you become a defacto standard that is not easily replaced. Then lobbying to ensure you keep that position.