Parfune niche IS and always WAS great especially if you sell quality brands. Cheap copies and similar not so good business.
Also there is option that is expensive: to make own brand, but I think that costs 6-7 figures
Literally 6 years after you post information are still very precise, thanks for sharing :)
Anycase I found this topic googling for top 10 products all the time, here are some more resources about this I found, maybe it would be useful to somebody...
I was long time ago (10 years) in footware business and at that time it was very lucreative, but I don't see why it should be also profitable those days...