As a reader, one of my pet peeves is when authors start series and we become invested in them and then the series never gets completed. Without needing to think too hard, I know of at least three series that fall into this category for me.
Because of this, one of my goals when I started writing was to always upload a few books ahead, so that my readers could see I was serious about delivering on the books I said I would. You can also see that I am thinking longer term. This wasn't a completely foolproof strategy, but for a small time author, it was good enough for now until I figured out a better way.
Another angle, one that I have taken often as a reader is I come across a new author, read one of their books and I love it. So then I do a deep dive into the rest of their works and most of the time end up buying those books too. So really, my strategy is two fold.
Imagine my surprise when I find out that Amaz*n (my biggest distributor) does not like it when you do this. In fact, they limit the amount of content updates they will allow you to make. Changing the date of your book counts as a content update. When you reach this limit, they will only ever accept the final manuscript, regardless if you're ready for it to be released or not.
This resulted in me needing to delete my original Avenging Heir (and losing the pre-orders associated with that book) and re-uploading it. Doing this, I've learned that Goodre*ads doesn't allow you to delete books either, they only make an exception if your book has not been published.
So, after this, I adapted my approach to reduce the amount of unnecessary admin I was dealing with. But in classic Amaz*n style, they have changed the rules again. So I'm going to need to adapt, again.
More of the story? As an indie author, if you feel something is important enough to do, then do it. You're probably just going to need to remain resilient and flexible too.