How much does it cost to start a network?

As a finance and cryptocurrency professional, I'm curious about the initial investment required to launch a new network. Could you elaborate on the various cost factors involved? Are there any upfront costs for infrastructure, licensing, or compliance measures? What about ongoing operational expenses like maintenance, security, and staffing? Are there any hidden costs that investors should be aware of? Understanding the full financial picture is crucial for making an informed decision about starting a new network.