Actually, the $3 kit is an instruction manual for how you can retrofit your Camp-Inn to accomodate the Maytag washer/dryer kit. (That's what the website said, although the link seems to have disappeared - perhaps they are having trouble with availablity.) Camp-Inn guarantees that it will fit in your Camp-Inn. I don't think they are trying to make money by charging for instructions, it's probably mostly to cover the postage.