Large tablet needed

I have had an ipad2 for about 18 months and I think there is a great need for an iPad large or any large tablet. Many iPads are used in the family/sitting/TV rooms. They are not carried around. The iPad mini and large phones like the Samsung Galaxy Note2 work well to carry with you.
However there is a need for a large tablet to use at home in the lounge and or the kitchen.

say a 15 iinch what do you think