Well, the straightforward answer would be to maximize the marketing potential that exists on the platform. Having a high number of subscribers, as mentioned earlier, ensures that your audience is large enough for effectiveness within the marketing strategy. With the many videos on YouTube and lots of more being added every minute of every day, it's very easy for people to miss a video that you simply upload.
Getting viewers to subscribe to your channel greatly reduces the prospect of them missing it as whatever you upload will appear on their home page. You get increased chances of the prevailing and potential customers consuming the knowledge that you simply pass to them. The subscribers to your channel also are more likely to go to your channel again than the other viewer. Having more visitors to your channel can only mean that you simply are reaching more and more people.