Personally I like researching stuff online - yes there is very little hand holding in-game. But I'm a big boy, I always figure it out or google it.
OFC space games can feel repetitive - so do JRPGs. But they exist to provide an experience. The longest mainstream game recently was Skyrim - which for me had very little plot, no characters and hugely repetitive game play (go dungeon, clear dungeon, go back to quest giver).
The X games are the thinking man's sandbox - except thanks to the difficulty curve they are more like the ultimate broken glassbox.