Costco Members Only
Costco has TP-Link Deco M9 Plus Tri-Band WiFi System with Built-In Smart Hub (3-Pack) for $319.99 – $90 = $219.99 with manufacturer’s saving.
Offer valid through April 15, 2019 or while supplies last.
https://www.costco.com/.product.131571
Amazon has the same 3-pack for $399