CerberusGate
I should save my game in a whole new slot
...given the imminent tunneler invasion
Suddenly, I'm more than willing to abandon the region. Unless a living Ulysses is there to run regular extermination services.
If I recall, Caesar wanted to claim New Vegas to validate the Legion into being an actual nation rather than simply claiming the land as a new capital.
EDIT: It could be that claiming the city would be that validation though I guess I can concede that New Vegas would become his Rome (though Flagstaff may be better suited as a capital since it's deeply entrenched and there is the risk of over-extension).
The quote is taken from the wiki:
Caesar desires two things: a Carthage, and a Rome; by seizing New Vegas, Caesar felt that he would finally be able to elevate his Legion into a legitimate nation by giving it its own "Rome" by destroying the NCR, Caesar's "Carthage" – transforming them from a nomadic army into a true empire; a militaristic, patriarchal, imperialist, autocratic, culturally homogeneous empire whose ruler holds undisputed power - a "Pax Romana" which would prevent humanity from ever fracturing itself again