Do we really need to average 60k to have a stadium that holds 60k? I’d be more than happy to average 55k and have spare capacity for extra if needed.
Yes, because every seat empty is lost revenue and it also removes the prestige of getting a ticket. The fairweather fans won't be giving up their seats if they know they can't return, give them any opportunity and they get bored they'll be soon gone and the number will be even lower.