Thanks, Ari, for sharing that article.
Word on the street (albeit a very long street from the beautiful Sangre de Cristo Mountains of northern New Mexico to diminutive Buckingham Mountain here in Bucks County (which might be called a hill back west) is that sales in Santa Fe have generally been lagging in the past year or so for all fields of art. The same issues of over-abundance and lack of quality control that we hear regarding African (or tribal) art offerings seem to apply to the broader market as do the changing pace and volume of traffic in the once quiet town in the foothills of the Rockies. Ever since the Woolworth's closed and the malls took over...
More specifically, though, the same "Tribal Beat" blog-site to which you linked also has an excellent group of brief articles -- entitled the Notes on Collectors series -- which outlines key issues discussed relating to collecting tribal art, articles which grew out of panel discussions presented by the Ethnic Arts Council of Los Angeles in partnership with Sotheby's in January. Written by Mark Johnson, an Asian tribal art specialist, these articles provide an excellent outline and discussion of issues to consider in developing a collection and/or simply viewing and assessing "tribal" objects. The entire series appears (once you scroll down a little) at http://thetribalbeat.blogspot.com/2007_06_01_archive.html
discusses authenticity, patinas, materials, cultural context and iconography. Part 2
continues the discussion of these topics and moves into a consideration of questions relating to age. Part 3
touches upon issues of condition (damage, repair and restoration) and provenance, while Part 4
continues the discussion while broaching issues of culture contact, quality and value. As a whole, these quite brief articles provide a simple and clear introduction to issues to consider in collecting tribal art, offering good food for thought (or wood for the fire, if you will) for those who are interested in all aspects of object analysis, appreciation and commerce.