That’s a fair point. In general when not prepared in long term campaign, I have enough running stuff to not need to prepare more.

But reading some other forum, it seems that some people are super anxious about prep and need hours of prep for every game night. Sure sometimes, I am on a creative mood and want to do these hours of prep, and come with a twisted plot, some maps and illustrations. But very often, I can just use all the ongoing stuff to improvise.

So I agree, not such a big deal