I'm upgrading my iPhone 4 to the 5S soon?

So I've had my iPhone 4 for about 2 years now, and I'm eligible for an upgrade. I've been waiting for the iphone 5S to come out just because I've heard that there were problems with the 5. My question is, does an iPhone upgrade mean that I'll get the phone for a much lower price if I trade in my iPhone 4 with it, or?

Apple products are a waste of money.

I own an iPhone 5 i wrote on another question that there will be no iPhone 5s i don't know why the media is saying there will be an iPhone 5s the only big thing apple is coming out with now is iOS 7 just because the iPhone 4 had an iPhone 4s doesn't mean iPhone 5 will have an iPhone 5s the "s" in iPhone 4s stands for siri and the iPhone 5 already has siri so you might want to rethink waiting the iPhone 5s and an upgrade means you get the phone for a much lower price ($200) but lets say if a new iPhone came out you could get the previous one for free.