Worth it to buy iPhone 5 now?
I've had an iPhone 4s for almost two years now (it replaced a stolen iPhone 4) and I have had no problems with it aside from the occasional app crashes, and starting recently, the phone will freeze for a few seconds, sometimes to where I have reboot the device. Would it be in my best interest to wait until the iPhone 6 is released? Or just pick up the iPhone 5 when the price drops? (I'm not eligible for an upgrade for two years-- my brother used my last one) On the other hand, is the iPhone 5s worth the extra cash? I love iOS because of its simplicity and flawlessness (in my personal opinion!). I'm an avid "smartphone photographer" and I've been perfectly happy with my 4s's camera but ready to upgrade. I understand that some Android phones (e.g. HTC One) have amazing cameras, and I've done research, but Apple's operating system is definitely for me. Any suggestions?
Added (1). I'm perfectly aware and up to date on the new iPhone 5c and 5s and their specs. I have been religiously researching to make this decision. My question is whether or not the 5s is actually worth the extra cash for the new specs compared to those of the seemingly very similar iPhone 5.