Blueprinting is nice but as in the tutorial it is a mess to position a mesh, 2 lights, a text render etc. The more items you have the more messy it get.
Take over the Prefab Idea from Unity. You construct a structure for example a little hut from a village in the UE4 Editor. With walls, a roof, a campfire, chairs, a table, and so on… once you are done you select everything and make a blueprint out of it. With the Blueprint Scripting, this would be very powerfull. You could create a menu to select which interior to show to make the huts (in this example) individual.