When Shutterstock had HD clips at $199, I was exclusively uploading to them. Sales were actually not bad then, but soon they slashed prices dramatically. I was royally pissed. For a while I tried uploading across several sites, IS, StockXpert, P5, SS... but it just took so long to upload and maintain multiple galleries. iStock was by far my best performer at that point, so when they raised prices I was thrilled. I am now exclusive to iStock for video, and I just love it! My sales are now back where they were (in $$$) before SS's price cut, and rising.

My reasoning for only uploading to SS in the beginning was that by using multiple sites I would be competing against myself. After the price cut, that went out the window.

Also 1080 HD at iStock is 75 credits not $75.