If you dont like SimCity or TheSims then you probably wont like this either, unless they add more gamish elements that havent been disclosed yet.
I think the key point here is all the Maxis SimXXX games you *didn't* mention that were utter crap.
The main common feature? No plot, not enough "game", too little cohesion, too much "simulation for simulation's sake", no "score"/"points"/etc.
Worst of the lot: SimEarth.
Followed by other great bestselling (not) games such as SimAnt etc...
* blahblahblahh still has original boxed copies of simearth and simcity. Dont think I've got originals for any of the others.
Of course I didnt mention them, they were crap! I played SimEarth and Ant and I didnt like them. I did like SimCity and the various railroad games. Its still yet to be proved whether Spore will be a good game. Its a fine line sometimes between a good and bad game. Fiddling with a city, fiddling with ants, both could have been good but only one was.
I wrote a letter to Maxis after they made SimCity but before Ant came out. I suggested that they should make zones in SimCity like army bases etc.. so two sim cities could battle it out for land. They actually wrote back and indicated that they were working on a strategy game, which turned out to be ant, I was rather disappointed. The concept of battling ants was good but it just didnt play well.
I'm with Chris on this, I think it will alter the way games are made.
Oh, I also bought Galactic Civ II a few days ago. I played MOO and liked that. I havent played GCII enough, seems ok so far, I'm about to invade Earth.