I've seen it time and again that a mangaka just stops what he/she is doing as he / she loses interest and starts the next project instead.
A very big example includes here "Candidate for Goddess". The Mangaka who created it was and is known for doing that time and again.
What really surprises me is that they just get work again and again despite their tendencies (and they even being KNOWN for that). In other branches (programmers as example) you are a goner from the market when you start doing that.
So my question here is is there any infos available on WHY Mangakas who are known for not finishing their work and instead starting something anew get work again and again seemingly very easily? (is it something cultural I'm overlooking here, or is it something else at work here?)