"The central section however is dedicated to various gadgets, mostly created by Amazon itself, such as Echo, Fire TV, Kindle Fire, etc. In this the shop reminded me a little of the Apple Store, which clearly inspired the layout of this section."
The focal point of the "amazon books" store is its tech, not books. They are using "book store" as a cover. The U-Village is an upscale shopping experience and easily allows for impulse buys on new $100+ tech products. It's their version of the Apple Store.