I was not saying in my above comment that Google will replace Lexis/Westlaw. What I am suggesting is that they will change how lawyers perform legal research. What this does is separate case search from case hosting. And case search is the really expensive part. Basically, as I see it, lawyers will start their searches on Google, and eventually migrate to Lexis/Westlaw when they've narrowed their focus, or run into a dead end. And if that happens, all those searches that migrated to Google, are searches that are no longer run on Lexis or Westlaw (and for which they can no longer charge a fee).