This box set reminds me of the 'Final Fantasy Trilogy' which AFAIK was also never released outside of Japan; A very nice box set with IV, V, and VI PSX editions inside.
So a set like this was expected. The packaging is impressive, and I'm sure it will be a darling for collectors for years to come. Of course, many will be buying it just for the purpose of collecting and/or reselling later. I doubt many copies of this will actually be opened and remain factory sealed forever.