I did a search and couldn't find a good answer to this question other than some info previous to the Hopper3 being released. So I currently have 2 Hopper with sling receivers and 3 Joeys (2 wireless) on our home account. Dish owns all the equipment currently. I just purchased a MH that has a winegard travl'er dish and the previous owner had a hopper with sling installed so hooking up the receiver won't be an issue. My question is so that I don't have to move one of the hoppers in and out of the MH will Dish allow me to add another Hopper2 to my account if I purchase the box outright and just pay the additional $15 a month?? second question based on the answer to the first.......can I then turn that receiver on and off when not needed??