When can I expect iPhone prices to go down and by how much?

I know the iPhone 5S is coming out in the Fall, but when exactly? I'm interested in buying the iPhone 5 or 4S but the 5 is $700 and the 4S is $600 here in Canada. Will they both go down by another $100?

Whenever the next iphone gets released, which hasn't even been announced yet.

They will go down about $100 after the 5S is released.

  • Will the Iphone 5 prices go down? The Iphone 5s and 5c are rumoured to be revealed at about 10th of september and about a week and a half later to actually be released to buy (sep 20th) Will the Iphone 5 have its prices drop like the Iphone 4s. The Iphone 4sis around 15 to 20 pound a month, will the Iphone 5 do the same and go down to the same sort of price?
  • Will iphone prices go down anytime with the next couple of month? I'm thinking about getting about getting an iPhone. Should I get one now or wait a few months? Who has the best service and the cheapest? Any prepaid iPhones out there? Sorry for all the questions
  • Will iPhone 5 replacement parts prices go down? Completely ruined my iPhone 5 and it's a ridiculous amount of money to get it fixed. One guy said he won't even do the job because the prices are too high. How long do you think I will need to wait until the price is reasonable?
  • Why won't the iphone 4 and 4s prices go down? I thought they would after the iphone 6 and 6 plus were released but they're staying the same on amazon. They are actually going up. When will they drop?