The Buyer's Guide says "don't buy" for the iPhone SE but it doesn't say why. I am interested in this model because it is the least expensive. I can trade in my iPod Touch and buy the SE and the wireless service and it is really a stretch for me financially to do all this. So I would like to buy the iPhone SE 128 GB listed for $449. Can you please tell why it is listed as "don't buy"? I know that obviously it is better to get a more recent model but each gets incrementally more expensive and I can barely afford this as it is. Any help appreciated.