The Nintendo World Store is a bittersweet experience:
CONS
* It's freakin' expensive. Don't expect good prices or discounts in games or products, actually you can get things cheaper at Wal Mart or Gamestop
* Lack of variaty on games. Yup even if it's the official Nintendo store is quite difficult to find rare games or niche titles.
* The "musuem" section is quite boring. Some things are interesting like the famous "Gulf War Gameboy" or the things signed by Miyamoto but that's all.
PRO
* The launching events are awesome you can get a lot of freebies there.
* The apparel section is quite good. Lots of plushies, t-shirts, key chains and other things.