Are expansions getting worse with each Sims game?

I suspect that over the years the people who made past versions of the Sims great moved on to other companies, or became jaded, and the newer Sims team simply doesn't have the same brilliant vision.

Perhaps, it is also our fault, the fans. I know that I should just stop buying Sims expansions, since they nearly always leave me disappointed and dissatisfied. Yet, I don't stop, I keep hoping for that pack that will come along and make a difference to the game... I guess that makes me a fool.