3. Can get more trusted easily
Even if they use exactly the same video, the number of viewers when it's diffused in the channel with "100,000 subscribers" and that of "100 subscribers" grow completely in different ways. Many people would be more attracted to the channel with larger number of subscribers even if they are exactly the same content. Channel with a large number of subscribers has the trust that "it should be fun since everyone is watching". In other words, channel with few subscribers has no trust. If you create video at full scale, your skill will improve and there will be more subscribers. However, if you could secure "trust" of a large number of subscribers in early stage, you can open a lead to rivals. The power of number is the power of spreading. Please experience it yourself.