Beyond that, it all kinda depends on the situation. If nothing else, that Star Base will add a lot to the defensibility of the planet as well as give you plenty of taunting amunition for those points laggards. Just so long as it doesn't interfere with your ship building activities, having a lot of Star Bases can't hurt. Each race has a few ships that are truly worth building, a couple more that are OK, and a bunch that are worthless. And you need warships to do your fighting.
Some races have warships with sufficient cargo capacity to do double duty in a pinch.
These ships come in real handy when you start to run out of either fuel or a certain mineral around one of your Star Bases. They use supplies to make them for you. These may be the only ships you could consider not putting transwarp engines on. Well, that's about it. But this will give you an idea of what you should be considering.