Archaeologists rightly view themselves as custodians of the past, but their institutional arrogance, their disdain for collectors [who historically were welcome allies in their pursuits] or other "amateurs" [such as metal detectorists in the U.K.] and their tendency to create and disseminate knowledge largely to and for only their own peers will not serve them or their discipline well in lean economic times.
Unfortunately, instead of the recognition of the benefits of greater outreach and working with collectors and metal detectorists rather than demonizing them, we probably can expect little but more sour grapes, at least from the purists in the archaeological field. See
http://paul-barford.blogspot.com/2010/12/martin-carver-on-artefact-hunting.html and http://lootingmatters.blogspot.com/2010/12/martin-carver-on-sums-paid-to-treasure.html
The truth is programs like the Treasure Act and PAS get public money and support even in lean economic times because they are popular with large segments of the public at large. In contrast, it will become increasingly difficult to justify funding for conservation projects that only seem to benefit small groups of archaeological professionals.