Trying to sell people a knockoff food 'delicacy' seems akin to trying to get people to buy cubic zirconia instead of diamonds or pyrite instead of gold. That is, the knockoff could be almost indistinguishable from the real thing but people are going to prefer the genuine article anyway.

I personally enjoy the oysters at my local fish shop, when i happen to be there on their 'oyster day' and they have them laid out on ice. If it weren't for that, oysters would never enter my psyche; I've never been at the supermarket thinking damn I'm really craving oysters. And if I did happen to see a bag of oysters next to a bag of foysters in the freezer section, you can bet I'm not buying either. I cant be alone on this.