rebooting something (or anything) is just a common practice and common sense. If your phone isnt working right what do you do? reboot it.
Not sure why you are asking if this is going to happen all the time?? Really? Ya they designed this to happen all the time.....it will require constant attention......lol
you can purchase (lease) any reciever not just a c61k, you pay the $100 buts its still leased. Some people do not qualify for a free upgrade, and not everyone is a new customers, so ya they might but an extra box. Usually you only get 4 rooms setup even at initial install, so you have to buy 5th and beyond boxes no matter what.
Upon activating any leased receiver it will restart your 2 year commitment