So, does anyone else believe that the Courier should have been "the master" of sorts, over the Sierra Madre? Not sharing it with Elijah but sole ownership/lordship; control over all its technology.

It's a pretty cool idea anyway, especially if the Courier takes sole control over New Vegas and thus the Mojave. Add the Sierra Madre into the mix and the Courier has a way of defending the Mojave and New Vegas from all attacks. Nothing can penetrate the Cloud and defeat the army of holograms. Plus, the vending machines provide virtually unlimited resources for the Courier and anyone/thing he/she allows to live in the Mojave. I think a continuation DLC should have been implemented, or at least an ending combining both, because the Courier could literally rebuild the city of Las Vegas with New Vegas' Secruitrons, materials provided by the vending machines, holograms for local defense, and preservation of the city by the Cloud and also a means of responding to attack from envious factions.

Just some interesting ideas.