delericho
Legend
Never played 4E is true, but I have about 3 feet of 4E books on the shelf, and I did read the core rulebooks because I was going to DM the thing. As I've said before the rules themselves are solid and an improvement over 3.5E, but the presentation is lacking imho. And I've read more attractive/interesting technical manuals then the 4E PHB to be honest.
Then I'm sorry, but you don't have the experience to properly judge the system. 4e plays very differently from how it reads. The complexity comes in tracking the ever-changing conditions, saves and power recharges - which isn't clear from reading the books.
You are correct that 4e is more resilient to additions that 3e - adding more options has a much less drastic effect on how the game plays, and especially with the DDI it is easier to keep track of everything. This is a very good thing, since 4e is also much more in need of expansion beyond the PHB/DMG/MM trio than 3e.
But 4e is most definitely a complex game. Even at 1st level there's a lot to track, and it quickly goes up from there.
Note that that is not necessarily a criticism. If you like the sort of tactical combat mini-game that 4e offers, then it is the very best of the market for doing that. Conversely, if you don't like that, and especially if you don't like using minis, then you're almost certainly better off with a different system, rather than trying to hack 4e. It is what it is.