We would continue fleecing locals who decides on match days they would like to watch their local club and be hit with £24 to sit in an amature looking ground, never to rrturn. £20 in a more professional atmospheric ground and they will be back, regularly.
Having strict admission criteria for our bigger games caused by low capacity that keep gates down because people like to turn up when they can not being forced to always buy in advance or subjected to a data base only entry.
Whatever the rights and wrongs of the development (or otherwise) argument, the bit quoted above would still happen even if we had a 20,000 seat stadium. Bigger games would be made all ticket / database only to prevent away fans rocking up and paying on the day to get into home areas.
I'm aware this happens now in some games (Sheff Utd anyone?) but that doesn't mean the club still wouldn't put measure is in place, even if the hypothetical 20,000 stadium was only getting ~5,000 a week