Should origami how-to videos have narration?

Hey everyone...I'm running a poll on my site asking whether or not audio (specifically narration) would have a positive impact on the learning curve associated with origami projects.

I currently have 35 or so (adding a few each day) origami tutorials up, all shot from a first person perspective so pretty much what's on the screen is what you're holding in your hands...but I still tend to think that having a voice reiterate the folds would appeal to all especially taking into account everyone's respective learning styles.

I didn't do this in the beginning because I was trying to keep download (streaming) times down to a minimal for everyone.

Sorry for the long winded post, but what do you guys think? If have an opinion on the matter, reply your answer here and I'll take it into consideration along with the data from the poll on the site. Thanks!

-Eric