Bamdorf: ditto for me. I like to stay ahead in the research race, and even the early levels (+10% and then +20%) of bonuses on the blue research relics can really add up if you are tapping into 2 or more of them. Often my early expansion focuses first on standard habitable planets, once most of those are claimed I shift to relics that I have located and try to get a starbase built by each of them as I am getting the techs for Extreme Colonization and then swing back into colonizing those planets as they become available.