Our kitchen is integrated into the living room (open kitchen space) and the whole room has hardwood flooring. Due to the room layout it would be hard to establish a "border" where the flooring could change (e.g. tile floor in the kitchen area). It it easier to have one type of flooring across all the room.

We rent, and unfortunately we were the first ones after the hardwood flooring was put in, which means that every spill and every scratch is on us. We decided not to bother, as every spill leaves a mark (regardless how fast your clean-up effort is), and thus adds character to the floor. It's a living room after all.

We know that a chunk of the security deposit will likely be gone if we move out. It would probably be as much money as to have the floor sanded down by ourselves.

Despite hardwood flooring has some disadvantages regarding spills and scratches, it makes the room much more cozy than any other type of flooring. The most durable type of flooring would be sealed screed flooring you expect in a warehouse. But that wouldn't look cozy.