[drewp]

How great would it be if you did redo it every other day, though?

You'd automate the video publish pipeline, of course, and then it would be like a cross between a high-level UX test and a rehearsal for your pitch. You'd get really good at the workflows you demo, which would probably make the demo more impressive, and you'd be more likely to clean up any rough edges or annoyances that you come across repeatedly.