Hold on, I'm not big on importing but isn't importing games more expensive than buying local?
No idea, I only know that instead of paying R$1400 (about $ 700) for my Wii back in the time, I imported it and ended up paying R$ 800(about $ 400). So yea, there is a amount of tax we need to pay depending on the customs. If you get your purchases with gift wraps you can even trick the whole system.
Not to mention that here in Brazil you don't need to pay for taxes a lot, most of the time you won't even need to if what you are purchasing is cheap.
I imported Skyward Sword from CD Universe in USA, the Deluxe edition and guess what? I was cheaper than purchasing here. I was checking stores here that were pre-ordering, and websites, the price would have been the double, almost thrice the price. Pricing in my country sucks. Pukes~
So yeah, I'm always purchasing stuff from USA directly, they end up getting cheaper. I'm lucky Nintendo uses the same ntsc version of their consoles and games through all the Americas. The least thing we need is getting a different version for Latian America or Brazil alone. That would mean that I would not afford a lot of good stuff, unless I get them imported from USA.
I am guessing they will sell the Wii U here for R$ 1600 (800$) *sigh*, sucky economy. I'm importing it, no way I will pay about 800 dollars for one.