Ultimately, my biggest issue with starships is the depth involved. Some people like that, and on some level I do too, but at the same time... I can go into tech and sub something in a half hour if it's detailed.
To do a detailed sub for a starship might take me an hour, hour and a half, because I have to double check gun counts, hangar space, find the appropriate ships to fill said hangar, etc. It's just constant alt-tab and rechecking so I don't look like an idiot. Even then, there's usually two or three things I missed.
It's just too much information for the layman to find accessible, even if the finished products are nice.
Then again, I've never heard someone say in an RP "Fire 231 of our 593 batteries." So, there's that, too, I guess.