I couldn't agree more. Cloaking I can get onboard with, especially if it isn't 100% perfect like that of a Predator, but completely invisible is just taking the piss and is unforgiveable in my book.
Page 1 - bacon sarnies, page 2 onwards - breakfast baps/anything else. The only thing allowed in between the bread of your choice is bacon, spread and sauce. Such is the simplicity of the bacon sarnie.