To upgrade or not?

iPhone 5S (left) and iPhone 5C (right)

On Tuesday, Apple announced the release date of its groundbreaking iPhone 5S and 5C.

Being an iPhone 5 user, I was contemplating on whether to upgrade to either iPhone 5S or iPhone 5C. However, after a deliberation of the pros and cons, I am unsure if it is necessary for iPhone 5 users to upgrade their phones. Initially, I was attracted to the 5C which happens to be the colorful iPhone because of its vibrant pastel colors. I thought the 5Cs were stylish and age appropriate for me. I did some research, and it was rather a turn off to find out that the 5Cs are plastic built. In my opinion, plastic built phones are rather toy-ish and unsophisticated. Also, it made me questioned about the durability of the phone. Will it break if I were to drop it? What is the level of resistance to the environment?

Then, I further researched about the 5S which is said to be the greatest. The 5S includes 64-bit processing and a built-in fingerprint scanner. Indeed, the features sounded advanced and appealing. After all, the 5S is more elevated in comparison to 5 as the 5S has a faster processor, improved camera, and fingerprint scanner. What bothers me is the 5S costs twice of 5C. Are any of these improved features worthy enough for me to spend a costly amount of money? To upgrade or not, that's the question. As for now, I will wait until the phone is out in the market, and read reviews from tech experts.