It's a matter of how half-ass you want to be with your projects.

When you say "Mainstream" what are you talking about? Could be anything from clothing, electronics and herbal diets to software, semi-nude posters and Hollywood movie reviews.

Maybe it's more of a question on your idea of quality or even your ability to produce something above the normal thinking of average. And then your passion in the project and ability to half-ass your way through it.

At the end of the day, it has your name on it.

I will always say - put your best behind something and over time, you get quicker at it as well as excel in your outcome.