Given the effort, expense, and risk involved in many brownfield projects, one LEED point is probably not a worthy reward. It would probably be more useful to think of this credit as a token, and to acknowledge that developers aren't likely to choose a brownfield site to earn this point. There is a silver lining, however, in that urban infill sites, which are often brownfields, are typically well-rewarded in LEED's density-related credits.