You know, I ask a serious question, and all I get are people telling me to buy Entrenchment. And double or even tripled in price, I would still buy a box set of Entrenchment simply because it is that damn good, and I think 10 or 20 extra bucks is worth it for having physical media, instead of having to re-download it off Impulse every time it needs to be re-installed. I am not very trusting of digital stuff. I prefer having tangible items, and would be willing to pay extra for it.
And as far as modding and AI features, no, I don't want Starbases, or even those two extra strikecraft classes, or AoE abilities for strikecraft, or mines, or anything really but fighter physics for my ships (which the mod forums have been clamoring for since the Beta of SoaSE, due to Sins's non-existent physics where ships fight Redcoat style), plus an AI that won't retreat so friggin' much. That's what I want.
The vanilla AI has sucked from Day One (it was so bad at first they had to patch it so it wouldn't retreat from its own homeworld), and I really don't want to have to buy an expansion set to get an AI that won't retreat if I so much as have three-fourths of the firepower it has. The vanilla AI will retreat unless it has an overwhelming advantage, so the only way to get a decent fight is to force it to its homeworld, by which time you own all of its planets so its Game Over by that point, and it also overrates capitals and their ability to shift the tides of battle. Take out a few capitals, and the AI will tuck its tail and run, never mind it still outnumbers and outguns you 3:2.
Just so you don't think I'm ranting because Entrenchment costs money, my primary source of anti-Entrenchment angst stems from the fact that defenses and the AI suck ass in vanilla Sins, and I really don't want to have to pay the devs to fix something they broke. That is why I dislike Entrenchment. The defenses and the AI in vanilla Sins sucked, and the devs should have done something about it, instead of making me pay money for the privilege of non-broken game dynamics.