Costco (in store and online) from today (10/07/19) through 10/20/19 is selling Netgear's flagship* Orbi mesh system (RBK53S) for $80 off:
Members only. Shipping included if ordering online.
BTW, Netgear provides complimentary one-year (instead of the typical 90 days) technical support to customers who purchase the system from Costco.
* Not counting the upcoming Wi-Fi 6 model, RBK852.