I want a N7, but I don't have arguments to buy a tablet

I want a N7. I want it. I really want it.

But I don't have any arguments why I need a tablet. I have a 4,65 inch phone, a 12 inch Chromebook and a 32 inch TV (and something different that's 7 inches but we're talking about tech here). Why the f*ck do I even need a tablet? And why do I want it so bad if I don't have any arguments to buy it? What should I do? Should i buy it or leave it for a little while?