[Tomgs]

Actually I see storage units all the time on AI planets. They are always mineral storage however except I believe some organic pick races also have organic storage. However they are always level 1 so I don't think the computer researches cargo very often. And there are far to few of them.

About shipyards I build far more of them than the computer does so I don't see that as a problem. Every planet I own except for a few tiny worlds includes a shipyard. Even while building level III facilities a shipyard can cut the time to build these facilities in half. And also after you build all the facilities a planet without a shipyard is doing nothing for you except a few units and even there you can build far more units a turn on a planet that has a shipyard.