i am not sure why people say it does not matter. just trust apple. well, the ipad 1 had way too little ram, and the ipad 2 camera is almost useless, even for my main use of photographing receipts.
processor speed is a big deal for me, and it's one reason why i remain interested in android. four cores and memory matter when you are (for example) flipping through a pdf file and waiting forever for pages to render. asus has made battery life work for its device.
the display is a bigger deal to me, but if i feel like the processor is too slow, i'll be happy to give android a try. apple needs to keep ahead of the competition, and i am worried that this a5x thing won't be what they need. we won't know until march 🙂