you should absolutely get a ps3
i got one a month ago, it's the best electronic purchase i've ever made in my life. way better than xbox (which i purchased when 360 originally released and xbox 1 was my best friend)
it's also a bluray player, so that alone (when considering its priced the same as 360) already makes it better than the 360. 360 is the same price but no bluray? please.
and the graphics in the games are way better. i use it to watch blurays, dvds, listen to music streamed from my laptop, watch netflix instant que, and the games of course. and the psn network makes it very easy to make friends with usernames u meet on various different games and meetup and play again later. and you can download demos for free on the psn network, thats what sold me into getting uncharted 2
oh, to answer your question, as far as new ps3 slim releases in the US is concerned, the options are having to do with the size or different bundles. there is the ps3 slim 120GB the ps3 slim 320GB and the ps3 slim playstation move bundle (which comes with their competitive version of the wii-mote and ps3-eye). so that's 3 different bundles
the cheapest one, the ps3 slim 120GB bundle, is fine. 120GB is a lot of space, even for me, and i download a lot of demos.
and i dont like that whole ps3 move thing. let the wii do what wii do, the ps3 is better in its own respect
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