That is the question!!

I do have a portofolio of little over 1000 stock footage on Videohive. Get some 160-200 sales on month, and I get 3.30$ per item.

Does it worth to drop my exlusivity and move on other sites? (pond, Shutter, revo, canstock, etc.)
On VideoHIve, non exluxive I will get 1.92$/item.

Oh god that commission...
Haven't seen your portfolio but it should be at least decent if you get this many sales in vh.
You dont need to submit to all those for starters, just ss and p5.
If you get at least 20 sales a month combined,which is a logical minimum for 1000 clips, you would make the same amount of money,or more.
Again haven't seen your portfolio,but at the very least you could try upoading without leaving vh,since we are talking about a 30%? cut,when leaving exclusivity.
You just need 5 more sales from the others to make the same amount of money.
Again,oh god that commission.

1. Delete your whole Portfolio immediately from Videohive. It is a Ripoff.
2. Create accounts on Pond5 and Shutterstock first and then on the other Videosites as needed or desired and get between $ 15 and $150 for one sale (there are some web sized sales on shutterstock which brin about 4 or $5 as well, but they are very few and very downsized videos)

Thats Envato. Woah, 6$ per video, when they sell images for 5$. Agree with the others.