Not trying to be rude Avada Kedavra, but who says that Ollivanders can’t have a SECOND branch in Britain’s only FULL Wizarding settlement. JK Rowling certainly did not state that it couldn’t. Also you may not know this (which is fine, you have only been a member for 2 days, but also could have been lurking for more, who knows…) but about going up into the Castle has been discussed here, ALOT, and right from early development stages, it has been shown that Hogwarts School is just a facade, the rock work below and towers are hollow (and are filled with immense, ugly beams inside).
Go to;
www.brianorndorf.com/harry-potter-theme-park and it will show you about ten updates from the entire construction process. Most of Hogwarts was built off site (excluding the re-vamped Astronomy Tower, which was built where it is now located). Some towers are REALLY small, but all are exceptionally detailed to create the illusion that we are actually entering inside the castle. When you said "they should have taken more time and buit an replica castle" they did spend time on the castle. A lot.
It is about the illusion. Rather than just presuming that they haven’t spend years to design and construct this park, and saying you are ALREADY disappointed with The Wizarding World of Harry Potter is a little un-called for, Give UO a chance. They have been in close contact with JK Rowling, making regular trips to visit her in the UK, and they apparently the masters of theme parks. Also, about The Three Broomsticks and the Hogs Head being connected, so are Zonko’s and Honeydukes. Unless it strongly stated in one of the books "The one thing that Harry noticed the most was that none of the shops or bars were connected. Not The Three Broomsticks and the Hogs Head, especially not Honeydukes and Zonko’s were joined", they can change little details for easier access in the theme park.
WITH JK Rowlings approval they have added new elements and created the whole park beautifully, and I am sure that anyone else who has been monitoring the progress on OU (ALOT of people) of the park daily, or sometimes more often like me, agree that this is as good as it is going to get, and what we are getting is brilliant. If you don’t like Hogwarts, visit Cinderellas castle...
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Actually it is 17 updates...