Ends 6/2 at 10PM PT. Computers.woot! has the Netgear Nighthawk RAX120-100NAS AX12 12-Stream AX6000 Wi-Fi 6 Router (2019 model) on sale for $300 with free shipping for Amazon Prime members or $6 shipping. Offers coverage for large to very large homes.
Has 2 Gigabit Ethernet ports with link aggregation support. The CM1000, the comparable non-Costco model found at most retailers, has just one Gigabit port.
Best Buy has the 4-pack NETGEAR Orbi AC1200 Dual-Band Mesh Wi-Fi System (White, RBK14-100NAS) on sale for $100 with free shipping.