Yup, a few pages back I also fielded the idea of finding ruined/abandoned craftworlds and taking them for ourselves. Though the main problems with that is the time needed to repair them if they aren't in pristine condition and the population needed to maintain it, though the exodites might be willing to help with that end.
Although actually taking them over is something that may be infeasible, it may be quicker, for example, to strip a dead Craftworld for, say, engine parts rather than build new parts from scratch to repair damaged engines.
Similarly for defensive guns, theatre scale shields, whatever Eldar have that functions as factories or refineries for esoteric components, etc.
At the upper end, there may even be truly high value infrastructure like Forges of Vaul or Seerstones just sitting around, particularly in some of the planets of the True Stars.
There may also be more easily movable valuables like docked ships just sitting around waiting to be flown away, armouries of conventional weapons and vehicles, vaults with WMD or other relics; etc,
Given the existence of both depopulated worlds and Craftworlds, we should strongly consider the value of a galactic scale scavenger hunt.
Particularly as for some of these things we may not even need to do much Scrying. There were apparently a large number of Eldar worlds outside the Eye of Terror that are now depopulated, and unlike Craftworlds they don't move, so we should know where the particularly rich and industrially productive ones were.
