Micro-Content Business

What interests me about micro-content business is that the dynamics of micro-content business differs drastically between free contents versus paid contents.  Free contents are consumables.  Paid contents are properties.

Thinking of paid content as property is an emotional perspective.  I paid for it so I must own it even though it cost me only a quarter and its existance is tenuous.  Thus I think the best business models for paid content business must leverage this human weakness.