Assume it was 1-click and 100% automated to deploy, run and update a Hub.

How much per month would you be willing to pay to run one? 

No direct economic incentive other than you know you're supporting Farcaster decentralization and you have your own copy of the network.

OK, if you're answer is you wouldn't run one.

Working on Farcaster and Warpcast. Longer thoughts at https://dwr.email

Ideal situation would be I could run it on a NUC at home but with just a one-click setup that rarely requires updates manually, and would be happy to pay the electric/bandwidth for that.

If trying to economically abstract, maybe $20/mo?