"One great way to determine whether your digital product is destined for greatness is how many people want to steal it. As the television industry is starting to realize, there's a great deal of positive information that can be gleaned from illegal torrents of the shows. If no one wants to watch it, no one is going to steal it.
The open-source analog, of course, is the download. If you aren't getting free downloads then it's probably futile to try selling a product. Downloads, in other words, tell us a lot about future purchases, assuming there's a compelling business and revenue model behind the download: ... [Cont.]"
Source: Full Article @ C|NET Blogs