Monthly spend on SEM + SEO?

sadafr's profile thumbnail
If you have a well-structured website (headings etc) a good keyword strategy (check Google trends, SEM rush) and someone to write and disseminate good quality content, I can't see why you would need to put any more money behind it.
TiffanyParker's profile thumbnail
Start with a great website and build good content. It also depends on your product, but don't go all out with SEM just yet.