4 ways to pick a winning product - how does it apply to blogging ?

From Harvard Business School Working Knowledge: Four Ways to Pick a Winning Product

There are four benchmarks for predicting the success of your product or service, according to this view from Strategy and Innovation. Here's how a few well-known products tested out.

The article proposes that there are 2 categories that new products have to excel at to displace existing products - purchase motivation and purchase barriers. To win, a new product must:

1. Providing high purchase motivators
   A. It must be less expensive than existing products (lower price).
   B. It must provide better features than existing products (greater benefits).
   
   
2. Eliminating purchase barriers
   A. It must not have any switching or adoption costs (easy to use).
   B. It must be readily available (easy to buy).

Lots of questions and thoughts spring from this:

• Does the same logic/approach apply to blogging inside the firewall ?
• Are the cultural issues that many of us were talking about about at Blogwalk 4 covered within this approach ?
• How can we combine this approach with David Wilcox's excellent diagram ?