I'm pretty sure that Clark is referring to the Atlas
complete layout packages which include all the track
sections required to build one of their pre-designed layouts.
I figure that the package price would be a good savings off
the individual pieces, but it would all depend on where you
buy them. Trainworld doesn't list the complete packages.
One place I found:
http://lighthousehobbies.com/
I know nada about this outfit, but if it had been there I could
have hit it with a rock from my house when I was a youngster
in Townsend, MA!!