Paradox games are for you then. Although prices aren't really realistic, you can't field a uber army or be at war during ages like it's nothing.
I tried Hearts of Iron and stuff, but the whole thing was a bit too confusing for me, especially after playing things like the Total War series.
Yeah call me stupid but it wasn't really a pleasant welcome to the game, with tutorials that don't work, etc.
Even warband multiplayer with it's difficult combat system (back in the day, it was very difficult especially here,) was easier to get into, judging how unforgiving it can be.
And that's what I went with after all, as you can see.