>No. 1 best selling
No. 1 best selling anything.
McDonalds is the "No. 1 best selling" fastfood chain, and they serve absolute crap too.
The trick is to appeal to lowest common denominator. The poor, the drunk, the stoned, those who don't know what the fuck "gourmet" or even "good" is.
Cheap, shitty, not immediately indigestible... BAM! No.1 food product.