I switched from Sprint to AT&T last week, and decided to come back to iOS. I went ahead and took advantage of the new prices on a 16gb 4s versus getting a 5 (which was out of stock). I am typically the type of person who always has the latest and greatest, but I am on the fence about this. I don't have as much expendable income as I used to have, and I am trying to change that side of myself (always having to have the latest and greatest). I really like the 4s so far, but I am worried about its longevity over two years, and performance degradation with future iOS updates. Was getting a 4S over a 5 a bad decision? Thank you in advance for your thoughts and opinions.