Yeah, it's much more expensive, but the US version is missing 8 bonus Blu-rays, initially included in those awesome Ultimate editions from 2009+.
Still consider them the best, for digipacks and hardcover booklets for each film. Hogwarts large digibook type edition was good too.
Selling a thick amaray with 8 BDs won't help much - it's around $20 brand new on Amazon.
Those that have previous editions better off buying a cheaper UHD disc set, if they need those.
This cardboard train is such an obvious cash-grab.