The thing is, a lot of the people who are most vocal and vehemently against western remakes of Asian cinema aren't Asian and don't know poo about the culture except whatever they've gleaned off of watching Neon Genesis Evangelion and Naruto. They're not trying to protect Japanese culture, they're trying to protect their little band of japan-o-philes who wear all black and sit in the aisles at their local Borders and read manga all day at the expense of some basic personal hygiene. Kind of like those fans of bands who feel betrayed when their pet band becomes popular and attracts new fans.
I still remember a class I took at college that was supposed to teach us to be culturally sensitive and there was this kid who one day proclaimed how the japanese had "sold out" because they used microwaves and wore suits and ties. When I read comments like, "not in japan = EPIC FAIL" I just have a vision of that kid.
Yeah, most hollywood adaptations suck, most hollywood movies suck anyways. But there's always the chance it will be done right... I'd rather be hopeful that a story I like will be told with a new level of nuance and insight.