Self-Publishing: Marketing Versus Publishing a New Book Fast

Hi-ya! I have been wondering which is more important, doing constant marketing or getting the next book out as soon as possible. This might not be a contradiction to some, but for me, marketing takes energy, focus, and time away from my writing. As you may have noticed, I have not focused on marketing as much as I should, but today I heard someone to make a buying decision they have to have seen your product seven times. That is a lot of blasting your book/product on social media to reach all...