1) Build Material. Tech sites should know better that this is a useless argument. Most people (I dare say over 80%) who own smartphones will slap a casing on their device. And most of these casings are made from either rubber, ceramic, matte or even a plastic. These techsites like +Android Authority
etc with their so called qualified 'experts' had been barraging the s4 with this stupid excuse. So it is a no brainer. Plastic is a more durable material compared to glasses / aluminium.
2) Design. One question. Was there any radical changes on iphone 4 till 5s? Designwise. None right? Yet Apple still sold truckloads of them. Samsung should have stick to that.
3) Hardware. A lot of articles had been written about how the technology space is about improving on the hardwares and how the screens should be bigger, more beautiful etc. These techsites had tried to downplay these significances for months now. Telling people how 720p is a good enough for a screen (in case of moto x. Read the reviews of that junk in +Android Authority
. You'll find it), how it is not important for samsung to come with gimmicks (which I call innovations i.e. smart scrolls and stuff) when these are the things that moves technology. There are lot more that I would like to share. But in a nutshell, samsung made the mistake when they listened to the gripes by these moronic editors from the techsites. Especially the ones I mentioned above.