Your campaigns are recurring.
Once a month or one every week? You can decide how often you want to send out your blog updates to your subscribers. You are in constant touch with your subscribers.
You publish your content only once.
You do not have to worry about creating separate content for your emails. Feed Campaigns automatically take the content from the blog posts that you have published.
Write better blog content.
There's a report for every RSS campaign that goes out. As a blogger, you can improve your content based on the results of your campaign.