Hell, we had a LOT more real bases back in the olden days....
Frankly the clustered bases and Mega-bases worry both of us. While they may be more economical I don't think the security risk is worth it.
When Fort Ord was shut down in 1994 we lost the only ocean based training location for the US Army. There are other ocean based facilities but they are overbooked to say the least. Oh and the land is now a Superfund site, all those nasty lead bullets and UXOs you know. They just recently took 100 million from the US Army budget for that cleanup. But hey, the Smith Blue Butterfly now has a nature preserve. You just can't put a price on a trade like that.