I've been wondering, for awhile now, how different colonization will be from EUIII. In EUIII, colonies never seemed to really be worth the effort and gold required to establish them. Their tax efficiency is terrible compared to fully established provinces (and never really reaches a comparable level), they're a money vacuum before 1,000 population, and they're much more difficult to defend early on. Not to mention the valuable National Idea slot(s) taken up by QftNW and CV. I know the National Idea system getting a major overhaul, but otherwise, how are any of the above raised points being addressed in EUIV?