Far from it!
Just take a look at the follow stats:
Email marketing has a ROI of 4,300%
91% of consumers check email daily (most people check it much more!)
When surveyed, companies say that email marketing is more profitable than: PPC, content marketing, display advertising, mobile ads, social media marketing, direct marketing, affiliate marketing
66% of US consumers aged over 15 have made a purchase as a direct result of an email campaign
1/3rd of consumers say that they open their emails on the basis of the subject line alone
As you can see, this is a form of marketing with a truly gigantic ROI and that has the power to engage like no other.
The question you need to ask is whether you’re making the most from your list building activities.