Pretty much everyone said that I should. But others also requested that I should add some way for customers to select a pack of themes or get unlimited access.
I've decided to add a membership plan where for $90/mo (still thinking of final price), you would get all current themes + future published themes.
Your feedback is super helpful to BuildFaster so don't hesitate to respond :)
You can purchase the plan on Gumroad here: https://gum.co/gGotm