I am working on a book project written for our local audience and someone suggested that it will be more marketable as an audiobook if it is in pidgin English. The novelty of the idea fascinated me but I am not sure of the commercial viability.
As you have suspected already, come to think of it from this aspect as well that how many people that speaks pidgin English do read books or will be interested in reading books written in pidgin, the content of what you're also writing matters as well as having already made market for it where there are people waiting for the launch to buy and read, maybe under an organization or society group, aside this I can't recommend someone to make move for doing such.
Have you read books written in pidgin English?
I've seen some but never go through them to read
Will you buy a book written in pidgin English?
No but i can buy for someone who might be interested or in need of such.