Do you think unit upkeep is too high?
I've been recently testing my skills against the hard AI, which prove to be an even challenge for me, but my only complaint is that these games get to the point where you have massive fleets, to combat the AI's similar sized fleet.
I guess my biggest complaint here is that at the highest level of fleet capacity the upkeep is around 75%. That means for every 100,000 credits earned, you only get 25,000. And in games where you often meet a stalemate at a certain planet and around 800-900 fleet unit points are destroyed, this makes restoring your fleet very difficult, especially if the AI has more planets than you do (more planets generally equals more tax income).
Does anyone have any suggestions as to how I can get a higher income at the top fleet level, I've tried playing with the trade ports, but I never really notice a difference when I have them. I'm also trying to resist going to the game files and modding the upkeep.