Define too long. I like videos of up to 20 minutes. That's long to some people. Occasionally I'll enjoy longer videos but almost always I think to myself "you could have said the same in a much shorter video". If you're coming up on an hour or more, you should really look at that script again. And I won't even open the 4 hours bullshit rambling videos. Do people actually watch that or is it just on in the background?