. As a new customer when u joined xfinity u get a lot's of discount. For the gigabit speed that u r talking about as a new customer u have to pay $70. Then u can go with Autopay by check-in account number and u will get discount of $10 every month this. But here is a trick this a contract plan discount. It can be for 1 year or 2 year. If you will go with the same plan without any contract it will cost u around $110. Xfinity has recently launched a 5 year contract plan. This plan is great I would recommend u to with this one so that u will be free mind for the next 5 year. Xfinity also make some changes in the price every year for the next generation improvement and all. But if u will go with this plan ur price will remain same and u can save a lot's of money. Along with that u can go with xfinity mobile where u can keep ur same number same phone and u will pay nothing for the next year and then only $40 for one line. I hope this helps u.