In business's it makes sense to maximise income and reign in expenditure.
People keep buying the tickets and merchandise, Wenger's done enough to keep us top 4 while making a profit in the transfer window.
Everyone's happy. Except the fans, but football clubs have an advantage over other businesses - brand loyalty. If Sainsbury's double their prices I'll go to ASDA. If Arsenal do then I'm not going to become a Spurs fan. My only option is to withdraw my custom - but for my dad I would have done that although I don't buy the shirts any more so I don't give them any more than I need to.
Until income starts to drop there's no reason Arsenal the business would change anything.