For its members only, Costco offers the TP-Link Deco M9 Plus Tri-Band WiFi System with Built-In Smart Hub 3-Pack for $229.99 with free shipping. That's $90 off and the lowest price we could find. (It's also $5 under the lowest price we could find for a 2-pack elsewhere.) It connects to ZigBee, Bluetooth, and other Wi-Fi smart home products, and provides up to 6,500 square feet of coverage.
The dollar store is the most amazing place to find bargains for certain purchases. Yes, even pregnancy tests.