Ok going out on a limb here ..
Bletchley is crap.
There's an enigma machine ,a recreated colossus and a few bits that could and should go in the science museum alongside the recreated Babbage computer.
The rest of the site is typical British, small town, local council, amateurish crap.
A model U-boot from some film set in the carpark, a few rotting portacabins with school project level displays of carrier pigeons on the walls, an exhibition of toy cars in one of the stables.
The national computer museum, is a collection of about the same home computers I have in the loft and a couple of old mainframes - with a volunteer to tell you about when they got them.
And the money is being spent on restoring the roof of some ordinary grade II 19C country house that is now used as the tea room.
The only bit that doesn't look like it was done by the local WI is a recruiting pitch by GCHQ explaining how we are only safe from Nazis because they read our email.
Move the artifacts to the science museum where they can be properly displayed and people will see them, there is no significance to them being at the same address as the offices they were used in. It's like having the air museum at Duxford distributed around the country in sheds at the site of each of the designer's offices.