I feel that outros and intros are very markety/cheesy, they obviously make you look more professional though. I can understand an intro for a montage as its cinematic. I just know the first 15 seconds is what you need to grasp your audience with and if your first 15 in the same intro and song every time, they may get bored and skip the actual video.
I think intros are awesome and love them but not only are those views and issue but also it will save time when rendering multiple videos with less editing. I just am starting to clean my channel up and this is one of the revisions I have been thinking about for sometime.
Please leave a comment on your views on intros/outros and what you think!