The size of your singular coffee tables is also a very important consideration. If you have larger scale furniture you want your coffee tables to be larger in scale also. A room can look odd and unbalanced if the coffee table is disproportionately larger or smaller than your other furniture. Keeping this in mind you should determine what size coffee table will best fit your space. You don't want to purchase a coffee table only to realize when you get it home that you don't have space for it because it's too big or that you have too much space because it's too small.
Is your home décor unique? If so you need unique coffee tables to match that style.