At least in the villas you have a place for the toaster. You are not stuck trying to balance it on the sink, or putting it on the floor. I though about the curling irons too, but I thinking using something to cook with is different. I don't routinely stick bread in my curling iron that could get stuck and burn.
After all if you can bring in a toaster, what else can you bring? Crock pot? Toaster oven? George Forman grill? Where would the line be? That is why I am curious as to what the offical policy is. I would think they would want you to only use the cooking gear that they provide you with, but I could be wrong.