Boutique labels and copies sold

[Loftus]

I know there's a few industry people on here and others with a lot of knowledge of the home video market so hopefully someone will be able to share their thoughts on this. I'm curious about how the boutique labels assess this- how many copies would, for example, Arrow need to sell of a niche film such as The Chill Factor for it to be profitable? I'd assume it would be relatively inexpensive for them to acquire the rights to that film compared to something like Pitch Black. But there's the whole process of restoration, producing extras, artwork and all the other costs associated with releasing any Blu-ray. Do the profits on the "bigger" releases help these companies release these smaller films? What would be considered success for a release such as that?