The soundtrack was remixed by Sam Okell & produced by Giles Martin. Martin: "it's night and day compared to the original, so much work has gone into MMT, especially by Sam Okell".
So far, it looks like the best deal on the Deluxe package comes from Amazon , at $66.49 at the time of writing. Getting it from the official Beatles shop will set you back $89.95.
In the UK, Amazon has yet to list the new editions of Magical Mystery Tour, but the official Beatles shop has it for £60 (give or take a penny).