I know that convenience stores have different little kiosks to make a few extra bucks. There's nothing wrong with such a practice, but I'm sure they can find something better to sell than dogfighting DVDs.
What the news story didn't mention is that some of the groups behind those videos is being sued by the Humane Society along with Amazon.com for selling such DVDs.
Between the selling of this garbage and selling of single blunts and cigars which are typically used to smoke drugs (is this legal?), some of these stores need to clean up their act.