I got it on friday for the full price and don't regret it at all. Don't like passive AI? Declare war yourself. They're meant to be more passive. Since they left the Earth after the Big Mistake they're more willingly to cooperate which is a really nice touch. It offers way more possibilities of playing the game. I like to create economic and cultural powerhouses and actually play the diplomatic game. And RT lets me do it. I don't feel that I have to beeline for wonders all the time anymore, too. God, that annoying sound when you were beaten by one turn in CIV V... An expansion worth of being called an expansion. And worth the price, too.