It is an attractive game. We'll see when it comes out. Ultimately all of these life sims are popping up because of increased interest in the concept. A lot of people around today grew up playing games so there is a big demand. This all creates more choice for players to make individual decisions and we don't all have to make the same ones. It will be interesting to see what comes out of all of this competition.
I think that the player base for these games features many different players who want to play in different ways. Sometimes we want to play differently from each other and sometimes we want to play differently from ourselves. I think there is enough demand for some or all of these games to make it at least for a while. Opinions on some games may also change as people actually play them but if anything, some players might jump between games and try different ones.
We'll see when they will come out, what they will cost, what their operational needs will be and if we individually want to play them. (I know LifeByYou is coming out in a few months and is making some improvements). They may tend to just increase interest in this gaming category though. I can't really say what I'll actually want to play down the road at this point but I'm not looking to dump what I'm currently playing either. I'd love it if this spurs some creativity from The Sims Team.