I feel like nobody would want to read emails if there are video content on youtube for the same product. Should I start a email list along with my youtube vlog anyways? I'm trying to justify the time and energy I will have to spend in creating written content on top of making my video content and just popping affiliate links in the video description box on youtube. What are the benefits of having a email list and how do I justify the time and energy spend on it? What can an email list do that a pure video content on youtube can't?