It is a bit of an inconvenience to have to go to two sites to see if a book is available as a Logos book. Why does Faithlife have two sites?
Don't forget noet and noet ebook [:)]
And store.faithlife.com and the Lexham Press Store and StartNextNow.com and possibly another dozen mini stores.
Why does Faithlife have two sites?
I agree it is annoying, and I don't think you will get a satisfactory "official" answer. The stores have different audiences (albeit overlapping at points) and run under different licensing agreements with publishers. Also, Vyrso (and Noet) are "bare bones" resources and more of a "hobby" for Faithlife. They don't want to pour much money into it because they make little off of it.