The Pros & Cons Of One Book Being the Breadwinner Within a KDP Account

I'm discussing the advantages and disadvantages of having one book as the primary income source in my KDP account.

My top-selling book generates the majority of my income, which has been motivating and empowering.

However, relying heavily on a single book for income raises concerns about diversification and the book's long-term sales potential, given it's a low-content book.