For a Premiership match between say Arsenal and Everton, would goodison park sell out. Also say Everton are doing really well at the moment and are in a champions league place.
Deportivo are currently playing Atletico at home and the ground must be half empty. its a 32000 seater. Kind of sad. Ticket prices are really cheap too. 20 quid will get you decent seats. 250 quid will get you really good season tickets.