Maybe I'm making some wish-based assumptions, but it sounds like a personal grid could be a boon for builders. And landscapers! I love to terraform but don't have my own sim to try new designs. It is easy to imagine having a personal grid living on my iMac with a full parcel of region-sized land to play upon. erm . . to work. Right, work.
Would much time elapse before the Lab or others find a way to connect these stand alone installations? Probably not. And I suspect that a distributed grid platform is a possible goal. It makes too much sense to not spread the construct across multiple sites.