I approve of the Ranger Base concept. I mean, obviously it's already been confirmed to some extent that the Ranger Base will play a more pivotal role in Wasteland 2, but it would be nice if you could really control certain aspects of how the base evolved over time. The base could serve obvious purposes, of course, such as serving as a dumping ground for inventory clutter that you can't quite bring yourself to get rid of, or perhaps even storing Desert Rangers so you can take a new one out for a spin.
It might also be fun if you could recruit certain NPCs to set up camp at your base, granting you access to various conveniences such as vendors or cosmetic changes. At a stretch, it might even be fun to have a situation akin to Dragon Age: Awakening, where your decisions on just how much to fortify or staff your Ranger Base might determine the effects of some end-game events. If you leave your base empty and undeveloped, perhaps a special event might take place involving bandits who take it over. If you spend some time developing your base, but leave your defenses wanting, perhaps an end-game event might leave your base in smoldering ruins to reinforce the mysterious enemy's strength and reach.
There are a lot of possibilities for such a game mechanic, and it fits the theme fairly well since the initial previews of the game imply that the Desert Rangers are just now establishing their first foothold in the California area. Of course, it might also simply serve as a distraction from the main story - which can be a good or bad thing, depending on how someone looks at it. Since the game is a free-roaming exploration-based RPG, I'd say that it's a good fit, but that's just my opinion.