Spore had a lot of promise, but tended to fall pretty flat. I think it aspired to be too much. Some parts were good, but, others were just fluff till you got to the space stage. Not all the gameplay meshed with each other, to many different styles.
And Spore - Galactic Adventures? Ugh. Never again. A bunch of barely interesting mini-adventures that tended to break the flow of the game. They were so compartmentalized that it felt like every mission was just me knocking off and playing some other game for a while.
Like I'm going to take time out of my busy schedule of fighting off the Hecatonchiopterix Empire to go hang out with the universe's survival challenged Clark and Stanley.