Interesting...

Im actually not sure i agree with the majority on this for several reasons, the primary one being if you only concentrate on a few quality sites, you are significantly cutting down your market reach whereas, concentrating on pumping out quantity of product, gives you a much larger market reach/penetration (more varied traffic) resulting in more sales over a larger range of products.

That being said, i can see how a few high quality products would certainly be of benefit to but in the long run, when it comes to quantifying your business, its going to make it much easier for a new higher quality product (competitor) to come along and depleat your earnings based on few higher quality products than it would for lots of lower quality ones.

Regards,

Lee