And this is the problem with you Americans who think the whole world works the same way as your lazy butts; Japan's construction industry is WAY more efficient and more technologically advanced than America's (because it has to be due to the lack of real estate there.) They could easily put up a building in 6 months tops. And in fact, I recently saw a science documentary about the new self-constructing building in Japan; builds a whole floor at a time in a few hours then raises itself up to build the next floor below it (control center is at the top floor which started as the first floor, all run by computers.)
But the point you are really missing (as is many here) is that it is Toshiba, a Japanese company, building a factory in it's home country.
And Apple DOES also invest in it's own home country as well; more retail stores in the U.S. than any other computer company, building that new huge Apple Campus, and that NC Data Center, all of which will create thousands of construction jobs and then later, permanent jobs for each of those facilities respectively.
But there is no way that factory jobs like this can be done here in America. The other myth about "Chinese sweatshops" was true for the clothing industry years ago (and in some parts, still true) but here again is what everyone is missing... the minimum wage in the U.S. is $8 something an hour, but the rent (at least here in Los Angeles) even in a bad area is at least $800 a month for a studio apartment, not even one bedroom. Compare that to the $1 an hour factory workers make in China, but they are only paying $50 per month in rent and sharing with several people, they are comparatively making and saving (and having a better standard of living) than most Americans!
But again, we're not even talking about China, this is about a Japanese company building a Japanese factory in Japan which will be supplying parts to Apple. If Apple were to try and make this factory here and make the part themselves, it would actually be exactly 5 times the price to make because of demands of American workers, yet the quality of the part would suffer because of the "work ethic" (or lack thereof) of the American worker. This has always been the truth for the last couple of decades (which is why GM cars are crap compared to, well, any other cars.)