Michael in FtW,
Whenever you have a chance, check your local Latin market, Argentina section and get a can of Sweet Potato Sweet (Dulce de Batata) and try a slice with a slice of Swiss or Por Salut cheese. I am sure this will change your mind.
There are some variations, Sweet with vanilla or chocolate or dulce de leche, but the plain is really good and nothing like you probably tasted before.
"Tell me what you eat, and I will tell you what you are" Anthelme Brillat-Savarin