User blog comment:Crazy sam10/Developer's Commentary (Multiplayer Reveal Trailer) Video released./@comment-87.209.103.157-20120910194353/@comment-1854594-20120911071315

I thought the answer to that was obvious. Valve cares much more about quality then they do money. They most likely don't want to release Half-Life 3 unless they are sure that it is the best they can make it.