I say "nitch." Never heard it pronounced any other way. Of course, I'm in the southern U.S. so we pronounce alot of things differently than other parts of the world.
I did meet a well educated black man in a boarding house years ago (don't ask me how a very well educated man ended up living in a boarding house because I don't know) that was always talking about the "nouveau riche" (reesh) and since riche and niche are spelled practically the same I guess I could have made the connection, but I've just never heard anything but "nitch." *shrug*
I say "AD-vertisement" and my husband says "ad-VERT-isment." I say "sKedule" and he says "sHedule" (but he's just picking on me when he says that!) and he picks on me when I say I'm "fixing" to do something! LOL
I also say "lye-nux" and not "lennox" for Linux. I say "JIF" instead of "GIF" like some people say it. I say "porsh" and not "porsh-uh" for Porsche. I say "jag-war" and not "jag-you-ar" like on the car commercials.
I pronounce things the way I want to, and I don't pick one people for the way THEY pronounce things unless I'm just joking and I make it a point to let them know I'm only joking and I'm NOT being mean.
