Iphone 4 why is it so cheap?

I recently purchased an iphone 4 on sprint's website. Is there any cons to why its so cheap, its $99

Because the 5C and 5S have just gone on the market.

It's old now

It's 3 generations old (it was replaced by the 4S, which was replaced by the 5, which has just been replaced by the 5S and 5C), and you likely also signed up for a new contract at the same time (usually when you do that, you get a big discount or the phone is even free).

Still a good phone but the new versions are out, 4S is free on 2 year contract

Because they're old.

Because it's 3 year old phone and was discontinued by Apple on September 10, 2013 with the introduction of the iPhone 5c and the iPhone 5s

Because it may be the ONLY 3 year old phone available… Anywhere

Simply because it was the oldest at the time manufactured iPhone.

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