If your domain page is just a landing page and you have 100+ internal pages. Does it matter that you target the interior pages for SEO rather than the domain page? In other words, will a higher SERP for the domain page increase or make it easier to rank for other pages or are they basically independent?

Promoting only the home pages is short sighted and VERY poor marketing.

To search ALL pages are "home" pages.

Promoting only the home pages is short sighted and VERY poor marketing.

To for search ALL pages...oh darn, too late.

I would have mentioned this, but in a much more "poetic" way, but I would rather not outshine Chris. So I'll dumb it down.

Page A is about 123, page B is about 456, and so on. They are all "related", yet I want page A found in the SERPs for "123", and page B found for "456", and so on.

You might want to get a link here and there to all your pages at one time or anther. Having a link to your internal pages will help them individually in the SERP.