Well with TS4 they have really stretched out the content over the years. Slow development, engine barriers and just plain greed lead to this game being half finished in the time TS2 and TS3 already were finished.
Everyone is shitting on "I don't want the same content" but they do. They want Seasons and Pets, and University and Vacations..... I think that you really can't escape making certain themes ever because those things will always be part of life and the sims is a life simulator after all. It just so happens that EA sliced and diced themes and dlc's. The vacation places on GP's for example. Both offer far less content than WA or Bon Voyage. It's not to say they won't make another Vacations EP but we would be seeing an 80€ price point for all vacation spots.
TS4 to me has just handled content in a different way, a way I don't totally like. And while I want new things, I want the "basics" too. And as a sequel, because that's what TS4 is, there's not a lot of sequeling around. They took too long delivering the basics, somethings to me still don't make sense to be missing from the Base itself, which is in itself super derived of content, a base that launched without family trees and other very crucial things.
