What is the reason that the βnewβ lego sets has no big groundplates and streetplates any more. I remember in my childhood every set was on a big grounplate or streetplate => 25x25cm.
Best example => airports. My first airport had 3 streetplates => the new ones => NONE.
There are also a lot of sets that had big plates and now has only small plates (Firestation, Police etc.)
Another good example => http://lego.wikia.com/wiki/6500_Holiday_Village => only a small amount of bricks but 3 street plates!