How much does a PS3 cost? How much would a used one cost?

May be...

And how long will it take for them to go down in prices a bit?

sony said that this summer it is supposed to experience another 100$ price drop.... and it costs 500 for the 80gb (which i recomend becuase i own one and it pwns + backwards compatible with all ps2 games) (except like 3 lol)

and the 40gb costs 400$ hope that helps... also if you go to a hollywood video to buy it (game crazy) they will give you 12 free rental coupons that you can use on blu-ray movies or on ps3 games!!!! (or anything else but..... why would you use on something else lol) hope that helps

why the hell are you on here, why dont you do some leg work yourself jeeez all you have to do is go on ebay, or google the things, and the prices will keep on gradually coming down as the thing gets older.

40gig ps3 399 used 40gig ps3 359.99 or a used 20gig ps3 that plays all PS2 games 379.99 all at gamestop.com

They've gone down to $400 now. The price has already dropped $100.