One thing that I've learned from doing the youtube thing is...
The easier you make the video to watch, the more views you'll get on the video. One of the first tings I personally look at before watching the video is the time on it. If its above 20 minutes, I usually don't watch it unless its a podcast or a lets play that I'm really enjoying.
But with that said, if you enjoy the way you do your videos. Don't change it. Some people don't like the way I do my videos, but I have fun with it so I'm going to keep doing them the way I have been since I started. What makes a lot of the gameplay videos on youtube so popular is the fact that the person on it is having fun. Not doing it for anyone else, they people who are watching are just along for the ride.
Just wanted to offer some friendly advice.