It seems that you add more features, you attract more users, but I think that if you've prioritized your features 'right', each additional one makes your product attractive to fewer and fewer marginal users.
Also, when you get really down in the weeds, I bet it's easy to have a daunting feature list that people bounce off of, especially if you don't have a clear separation between marquee/headline features and detail features, meaning you might make your product attractive to an additional 1% of users, but 5% of your existing potential users fall out of the funnel because of the word soup.
Build one simple feature that people are willing to pay for and start marketing and selling it is by far the path of least resistance.
(Then carefully grow your product outward from that point)