An advance against royalties – Have you heard how many of our peers didn’t get paid? They entered into a multi book deal like you were offered and well, the pub didn’t think book 1 went very well, so books 2 & 3 were cancelled. No money for you.
There’s the appearance of stability when working with a publisher, but they cannot offer you job security. All of a sudden, your 3 book, 6-figure deal ends up earning you $30K over 2 years and you want to poke your eye out with a fork. True story – just not mine, thank god. Ask around.