Research: Email still has the best ROI
Source: Marketers Continue to Rate Email the Most Effective Digital Marketing Tactic
Here's are ranking of marketing EFFECTIVENESS vs marketing DIFFICULTY
If you're having a tough time with email marketing, hang in there.
Attack your problem in a MODULAR way
1) Are you recruiting list members the right way? Are you targeting the right people?
2) Are you testing your subject lines? Are you optimizing them to boost open rates?
3) Are you tweaking your email body so they get readers excited enough to click on your link?
4) Are you constantly testing and refining your landing page to maximize CONVERSIONS?