TP Link prices, to some extent, according to their costs. If they are using Qualcomms expensive platform such as Networking Pro 1220 Platform, which I think is in the Deco BE85, then it will be dramatically more expensive than the HU710, that is on their Immersive Home 326 Platform. For small network environments, like a home, on common clients, the WiFi speeds will be similar. The distance and range of the router likely depends not on the CPU but the WiFi chip. More powerful CPUs handle things like VPNs, multiple users etc. better. TP Link's cheapest WiFi 7 router, the BE230, is on a Broadcom platform, but it happily communicates with the HU710 at over 2Gbps