I’m a remainder at Villa Park but hypothetically for this discussion, I don’t think ‘centrally is ideal’ in this discussion. I very much agree with transportation connections and additional facilities and all the good stuff but I think ‘centrally’ i.e. Town Centre, is the last place to have it, I’ve never got this idea it has to be in town. Yes it has to have access to town via transportation but the best thing imo would be based away from town centre.
Having lived in Sydney, I loved going to Sydney Olympic Park. It had concerts, football, rugby everything and the transportation system was far better than anything here and catered for any type of transport or visitor. Being in town would be a nightmare idea for anybody other than those going drinking before or afterwards.