Good question this. I don't think the problem for most people will be getting tickets - it will be getting tickets together with friends and family they're unable to sit with at the Amex. Would be good if they can find a way of sorting that out.
You'll usually get some people who don't go to the semi - 'saving their money' for the Final. I don't think that's likely to apply to our fans given the rarity of the occasion and the calibre of the opposition.