Ewwwww upkeep

Hate to be a naysayer but I am unsure on this one. I think I would have preferred prohibitively large but flat monetary research costs to keep people from maxing fleet supply every game to upkeep.
At least in prior RTS games featuring upkeep it was more of a maintenance cost, and dropped back down when the army size diminished.
I dunno, maybe it makes sense to you more 4x familiar players, but the RTS in me tells me permanent levels of upkeep will make people just want to spend all their (few) fleet points on cap ships in the endgame. We shall see I guess.
Also with people being so strongly discouraged from creating giant fleets I have fears about too many massively turreted chokepoints with static defenses now. Hmmm. Somehow it feels wrong that turtling could be the "economically sound" solution.