Just the general area/stadium. The main road where you buy the fish/chips doesn't scream biggest club in the world. The walk from the tram station to the stadium is like a run down industrial estate. Inside the stadium, the stairways, the toilets, the condition of the fans seating, stories about the roof leaking. Just all of it.
You look at what some other clubs have done and its the whole experience. The area and walk up to the stadium. The quality of the food. The sound system inside the stadium etc. I think as long as the owners can fill seats they just don't care. It's an added expense they don't want and will eventually pass on to the next owner.