Creating “Laser-Targeted” Ad Groups with SpeedPPC

Recently I was reading an article that listed "common mistakes made with Google AdWords". One of these was putting too many keywords in an ad group. The consensus was that although it would be great to be able to "create a unique landing page and PPC ad for every keyword you target, so that your user’s experience is as laser-targeted as possible"....it would take forever to build and nobody has that kind of time. Obviously the writer has never used