Most SEO retainers trap you at 30 percent margins because you’re selling time....

https://www.blaze-bookmarks.win/most-agency-retainers-hit-a-ceiling-at-30-percent-margins-if-you-turn-your

Most SEO retainers trap you at 30 percent margins because you’re selling time. By turning your internal workflows into a simple software product, you can push past 70 percent margins. Build a lab instead of just another agency.