Best news is the iphone 4 is now free.
I dropped mine a few months and the back shattered.
I'm out of contract- can't wait to switch away from ATT and go Verizon.
I use my ipad way more than the iPhone. so a 4 is more than good enough for my needs. I'll take a replacement 4 for free and much better coverage/service.
good luck
Spend $99 on the 4S. It's money well spent. You are likely going to get shorted out on a lot of future features due to lack of CPU power in the 4 going down the line. The 4S is going to keep you a lot more up to date not to mention just better to use.
It probably won't break. The biggest question is; will it blend?
Fixed that for ya.