Maybe the 1,000 phrase has a $5 CPM, but the 600 phrase has an $ 8 CPM. Let’s assume the CPMs are equal, giving the advantage back to the 1,000 phrase. Maybe the 1,000 phrase is entertaining or a fun fact-reading article. As a bonus, if these features and services are in demand, you may find a higher conversion rate on your product detail pages. The overlooked conversions here are email and win-back sales that came from the work you did as an SEO and potential conversion rate increases from the product pages and spec sheets you had updated.