$25 for an iPhone 4S, is it a good buy?

My cousin bought an iPhone 5C and is selling her previous iPhone 4S, she offered it to me for $25 USD. It has a crack down the side which I personally would want repaired and I don't have a current carrier, is this a good buy or should I turn it down?

I bought my new iPhone 4S a few weeks ago for 250 bucks and I would have loved this deal

Yes. The iphone 4s is still selling for around $450 brand new.

In contract

"good bye?"… No, good-bye.

For $25, it's a good buy.