The thing im thinking whilst reading this is peopledo want the park to open later, and why not. If your willing to keep spending then they should keep open, i dont think fianace is a big issue.
But, and this maybe all complete tosh its just me trying to piece together why they wont when other places will. So here is a list of the reasons why i think they close.
1) Cost, Staff aint cheap even if they are on min wage, still have to pay over time and add a bit on top due to unsociable hours (that may not be true). Then they are the obvious cost fo keeping rides operating etc etc etc.
2) Im not sure of anyone works for a company that can force you to spend a few hours more at work, but let me tell you on a warm day, the staff at AT might not want to work longer then they need to, especially after a warm and exhausting bank holiday.
3) Resctictions that are out of Towers control. Im talking about the council, do they let AT open late. Are there restrictions to the amount of hours AT can open in a day. We know that they have restrictions on the amount of fireworls displays they can have each year, is there a gentlemans agreement about this that any of us know, and with the Roper case coming up do they wont to give there lawyers anymore ammo to fire at them. Also traffic in the area. AT isnt the best place to get too at the best of times. Ok it opens late at Scarefest but that maybe part of the agreement
4) Just gets people away from the place so they can tidy up, do maintance and get people away from the Hotels that arent booked in.
These are some of my theories. Im sure they are more and i maybe post of i can think of them. You may agree or disagree but thats why i put this here.