I'm thinking of buying a Vip 722 DVR and I was wondering how reliable this model is. I'm used to leasing and if a problem happens, I just call Dish and get a replacement. Unfortunately, I have to wait 6 months to a year before I can upgrade again and I really don't want to wait that long. I guess my main question is, is it a hassle to get a receiver repaired and is this particular model trouble prone. Any and all suggestion would be greatly appreciated. Thanks.