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		| narf poit chez BOOM said: 'Palace' facility. No requirements for what it does.
 
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 In a similar vein, Brothel! 
 
More seriously, how about a research lab component that provides extra RPs when placed near an astronomical anomaly like a black hole? That would provide one good use for those systems!
Another would be a diplomatic station (a la Babylon 5) which can provide trade income and (perhaps) small diplomacy/intelligence bonuses with "nearby" AI races.