oh you're being like that.
forgive me if I missed it but I cant see anywhere you've explained why manufacturers choose the matt finish? Bear in mind quite a lot of pros on v.high end screens use hoods so glare isn't really a problem
EDIT: Also, i'm assuming you dont work in graphics from your responses, but good studios use diffused lighting at the correct temperature (even neutral paints in good edit suites) so glare def isn't an issue