New vs. Returning visitors?

[Emilio]

I'm curious what is better to make new visitors come back your website and what is the ratio of returning visitors on your site?
Have you done a research about it? Any ideas?

 

[jameswilliam723]

Getting new visitors is always better as far as SEO is concern.
I meant new visitors should be in the range of 70% and returning visitors should be in the range of 30% is always deemed to be good as SEo perspective.