Having never used bookbub or AMS, (being too much of a coward to risk money on either, besides not having a series to promote), I'm inspired to ask: JR, do you think AMS is the way to go for a novel until you feel that you have more or less saturated your niche and need to reach out to a broader audience? I've dipped my toe into paid promotions, but AMS makes me nervous for some reason. It looks so much more complicated. But it seems more and more that this is the way things are skewing for the best use of advertising dollars. And out of curiosity, how would you decide when its a good idea to move out of AMS and start paid promotions?
These are all theoretical questions on my part. I've read a lot about these things but still can't seem to get my mind around how it all works.
With Bookbub, I wonder if your promotion happened alongside some other popular author promotion on BB? Maybe they all bought yours and then rushed out and bought some other things? The sales on my historical mystery are low enough that I can sometimes tell when someone buys my book because the also boughts change. I do think they are very sensitive to recent buyer purchases.