Fulham are averaging an attendance of 24,290 this season. That’s 94.5% full.
For arguments sake, selling 94.5% of home tickets at £50 is better than selling 100% of home tickets for £30.
They’re not breaching any rules. They don’t need to offer additional tickets to away fans over the regulated allocation.
I’d much rather be a Brighton fan with c3,000 tickets on sale for £30 AND more tickets on sale next to the away fans. The alternative is just the c3,000 allocation and home...