DE Conquest?

Do any DE have an interest in actually conquering worlds, rather than merely raiding them?

In one of the Soul Drinkers books, there was a renegade Archon who sought to take over a planet and turn it into a second Commoragh. I think conquering worlds is more common among Kabals that have been banished or cast out, but those who are based in Commoragh and its sub-realms have no need to- after all, dwelling in the webway makes them almost impossible for the lesser races to reach, allowing them to escape retaliation. Why put in the extensive time and resources it would take to occupy a planet in realspace when you can just raid it every few years/decades/centuries and carry the spoils back to your lavish secret hideout?

TL;DR: Why by the cow when you can get the milk for free?

From all the stuff I've read, I've never seen any example of a full Dark Eldar conquest. They're just not the kind to stick around.
Not only would there be problems (I mean look at our units), but being that long in realspace would be bad for their whole "hide from Slaanesh" thing.
There's definitely been examples of worlds pushed to a point where they can;t fight back, and then becoming routine raiding grounds, but even then they go after a time. Staying in one place is just...boring.

Personally, the way I explain it, in the 'words' of my Archon, is that the master does not dwell amongst his slaves. Sure, there's an element to ot of Slaanesh draining them more, but I can't see them admitting that. Mostly though, would be that they see no reason to. What would it gain them? They already have all they need in Commorragh.