"Less is More"

Architectural record just published an example of  great architecture in a fantastic site in Massachusetts. The architect's approach to the site is very gentle and enhance all the views of the site and its topography, the layout also works pretty well.

When I started to look at the pictures it just call my attention the over use of wood, in this case red cedar.
There is not other distinguishable  material other than wood. I would be thinking about using either contrasting materials or something similar if the idea was to have some sort of homogeneity.
I feel that the indiscriminate use of a material like "wood" or any other material is not very sustainable; if we all agree that green design is part of good design. It just doesn't feel right even when the wood comes from the most sustainable forest in the world or the owner has all the resources to pay for them.

One of our responsibility as Designers/Architects is to help our clients to make the best selection of materials. Where we as a responsible designers feel comfortable while at the same time help our clients with their project goals and vision.
http://archrecord.construction.com/residential/featured_houses/2011/07/Bluff-House-slideshow.asp?slide=15