I build for one (1) potential visitor, explorer, reader.
Every once in awhile I compile a collage to illustrate the progress of my storybuilds. The builds are in various states of completion and continue to evolve as I build. I rarely think of a build as being finished. With the luxury of 100,000 prims, there goes my compulsion to add the detail I couldn't afford to add (efficiency or cost) anyplace else.
At Kitely you can storybuild an epic with a few tools and tad of imagination.
I write ages/worlds for one "reader." Not for myself, but for the one potential reader who may stop by to enjoy my lateral stories -- told through immersion illustration and exploration text. I rarely set the switch to fly, because I want more control over my environments. To remedy the issue of access, I look to the example of the best storytellers and painters. I need a pathway system into and through my stories (that also direct my readers and create another possibility for control over my large regions).
All of my storybuilds are connected through a hub and story. Since my storybuilds are character driven (like any story or art), each build is connected to the other in some way. The paths look a little different in each build. The same system is used over and over. I write in my paths deliberately, even though some of the paths are added after an initial start. Not every real life village is planned from the start. Most stories are revised. The best stories are revised a lot. The challenge is to find a way to add to a build, while making it look planned from the outset. I am still learning to be successful at that. Like I am learning to be successful at building cohesive worlds that leave an impression(s) on my one potential reader.
Apologies up front to that one reader:

Truth is I plan from the outset to add gateways, pathways and detours to all of my builds, but I may not get to their construction until I lay down the 37,000th prim. Since I don't allow for fly (damages the mystery and control over the story). I know its a must to get in these pathways. I will in due time. Lately, I've been laying them first. It takes time to tweak in the flow. I am challenging myself to work in different ways with hills, dales and circular pathways. In rare instances I do allow flying for fairy worlds or space worlds. As a visitor I'd rather not be seeing what I don't need to access. I enjoy being led through a story (linear or lateral) by an author (author and me conversation). Having come from this storytelling tradition (Uru = no fly, but tons of detail), I won't be changing my mind about this controversy for a long while.
The good news is at this point there are working pathways available at all 6 builds.
unclewiggly by
ddickerson2, on Flickr
My planning that always includes revision adheres to the Uncle Wiggly Design School (young persons will need to look this one up

. This school hasn't let me down yet. I daresay my one reader is still deciding whether it is working. At any rate, the following are some of the builds I am working on, and how pathways are used to encourage visitors who stop by.
PHOTOGRAPHY by
ddickerson2, on Flickr
1. Oakes Valley - 9 no fly regions, Gateway, bronze brick road that connects every structure and region, soft surface horse trails and bicycle paths that intersect with the hard surface roads. A complimentary bicycle and tour awaits my potential reader. A horse and walking stick tour is being beta tested now.
2. Midtown Arts Museum - Gateway, 4 no fly regions, surrounded by a Far East railroad tracks (ancient artifact). My potential reader can ride a bicycle from region to region. There are "stops" along the way and convenient entry to the many exhibits that make up Midtown.
3. Consortium Park - Gateway, 1 no fly rainforest region (nefarious back story). A walking stick path leads my one potential reader in and through the secret passage build.
4. Brantley Park No. 3 - Gateway, 4 no fly regions (nefarious back story). A walking stick and coming soon packhorse trail up the mountain and down into a cavern. A challenge to terraform, because I wanted the path to be part of the natural terrain.
5. Picture Book - Gateway, 8 no fly regions, and the reader can earn the right to fly in the last fairy tale region. A walking stick path. Fairies live here, so the reader should learn to fly. Flying is a part of the story and the hero story metaphor.
6. Celestial Toymaker Theater - 1 region, no need to fly or use a path. Gateway? Certainly. There is an easy to follow brick walkway that leads the reader into the theater. This build is one of the first storybuilds I've done at Kitely, but the least finished. Gotta get back to it, but its interactively immersive and will take time I haven't had ---yet---.
Using several sizes of canvas is to build on, and writing several chapters that include a different number of pages is an interesting and challenging process, but one I prefer. I dabble here and there. No deadlines to meet. One step at a time it will come together. What's the rush? When I ran out prims and plot in other universes I can only sit there or change out the picture frames. My productivity certainly changed at Kitely and for the better.
The best thing about writing for one reader is that I am not counting on this reader to show up soon, but I build as though I am. There is no pressure to build for someone who doesn't appreciate or understand what I am doing. I wouldn't build if the task created more pressure on me. I build because it dissipates life's pressure all around me.