If you don't know what niche is , the best way to describe it is in my words it's like Hip-Hop. We have the maintream artists like Jay-Z , DMX etc they are the brand names and they buy the audiance with advertising getting the best fragrance heads to make the juice but it seems so unpersonel. Niche is like the underground hip-hop, where not many people listen to them and true hip-hop heads think is the best of the best. So niche is like the more expensive but less known , and all the scent snobs think it's the best.
Either way niche fragrance usually use better products in there scents , hence the larger price tags. I can't wait to get my new bottle of Creed , and I am still looking to buy my very first bottle of Bond no.9 fragrance.