[kochthesecond]

I would have to say this. CLIs are much simpler to make and much cheaper to support.

Making one-off tools to automate tasks, or even building a set of internal tools for handling certain operations is much more feasible when you can churn it out in an hour and be done with it.

Just today I spent an hour modifying an old cli tool to help process some customers that I could get as Csv. If I was to make a gui tool for this job, it might take a week or two and the result would be way less flexible.