There are many benefits to gain from having a high number of YouTube views. The first one is that it will lead to more people joining as your subscribers. When people are deciding whether to be subscribed to your channel or not, one of the most important things they look at is the number of YouTube views your video has. No one will want to be your subscriber when others are not viewing your videos. Therefore, if you want to get real YouTube subscribers, you have to work on bringing your views up.
Secondly, a higher number of views also contribute to a top tanking of your video. If you want people to watch the video you have posted, it has to rank highly in the search engines. Google considers the number of views during their ranking.