@NickAragua (great handle, btw)
That's the conclusion I've come to, yeah. I've trimmed down their stations pretty thoroughly at this point, so they're barely an issue in my home systems now.
@Fleet
I hadn't thought of that, so I'm glad you said it. I've been trying NOT to destroy trains, since I know that at least the turret ones incur a substantial AIP hit. I guess the number of trains on the map is fixed from the start, then, but the stations they travel between can be reduced until you end up with knots of them in various places? That does have the potential to bite one right in the ass when making a push towards an AI homeworld, I bet. I'll keep it in mind!