I was a bit miffed at the value proposition in Tropico 3 vs 4 but once I got over that I ended up enjoying it as much as the older one. You can get it super cheap these days too, it's a real bargain compared to SimCity. It's bizarre that such a little game can get a basic gameplay concept right (the agent system) while SimCity totally screws it up. Tropicos iteration is very basic using templates but the game also functions properly soooo
I never played the Caesar games, are they much more technical than SimCity games? I'm wondering whether I should pick up Anno or not.