My personal guess is probably a lot of local voting for those places. Some island residents like to try what they see on TV and things other than what they grew up with.

Our local friend from the island wanted Red Lobster when he was here in the states 16 year ago. I asked him why since he had all the seafood around him on the island. He said he liked their commercials and it just looked good and like something different he wanted to try. We went to Red Lobster then!