How much does it cost to start a DAO?

I'm quite curious about the initial investment required to launch a Decentralized Autonomous Organization, or DAO. Could you please elaborate on the various expenses involved? Are there any upfront costs for setting up the infrastructure, or are there ongoing operational expenses that need to be considered? Also, would the cost vary depending on the scale and complexity of the DAO? I'm trying to get a general idea of the financial commitment required to embark on this endeavor.