Is the iPhone 4 worth it since it is free?

Should I get the iPhone 4 for free or pay for the iPhone 4S?

The 4 is fine but the 4S would be better of course.

FYI, the phone itself is free but the fees attached for the next two years are not.

If you want siri and a slightly faster response time on the phone, get the 4s. Otherwise they are about the same. Free is always a good thing.