Re: Online tickets
I don't think we're expecting mega sales on the online tickets - but we have had some sales. It was more a case that we wanted to have something in place, that we know works, should we have a big game to host, where having a online sales only gate would help with queues.
As for change - you'll be surprised how many people won't come with the correct money - or the odd pound if they have a £20 note. I used to operate the turnstiles back in the day when we charged £6 - never ever had enough change despite a decent sized float. It'll be interesting to see what the reality is this time round :)