Try and hold your ipad with one hand while reading a book in bed for over an hour... Your arm hurts right?
Now... Do this same with an iPad mini. Better huh?
This is exactly why that I went out and bought the iPad mini because my iPad 4 which i hold it in bed does exactly that it hurts my arm and my hand falls asleep and I'm a side sleeper so I like to lay in bed on my side holding my iPad. While the ipad 4 is an awesome iPad it hurts my hand to use it in bed so I just got my iPad Mini today and I will be trying it tonight for the first time. The Wi-Fi on the iPad mini is just the same as it is on my iPad 4 and also my iPhone 5 so since I use it mostly in a Wi-Fi network I'm very pleased so far with the speed
It may not be for everybody but you know you never know until you give it a try that was my philosophy