Either y'all rich or I'm too poor, but reading people talking about spending $200 on a backup phone sounds pretty crazy to me -- it's fine though, it's y'alls money. I bought an iPhone 4 16GB for $45 and I only paid $20 because I had some leftover money on a gift card. I know I have to wait about 3 more weeks or so, but I'm fine. Of course I miss Siri, fingerprint sensor, Apple music (I paid 99c for 3 months with spotify for now tho), but its not worth paying $200 for an iphone 5s that I'm gonna use for the next couple weeks. UNLESS you're planning on giving it to your kids? a cousin? as a gift.
I sold my iPhone 6 64GB for $650. if I were to spend $200 on a backup phone I think it wouldn't be worth it. I would just sell it after I get my new iPhone 6s.
If y'all want to buy an iphone 4, I can tell you who sold it to me on Amazon. This phone is in such a great condition, clean MEID and the guy shipped it fast.