Simply, a 10G network requires a 10G infrastructure. Server's need to be 100G monsters just to keep up with the packets.
I don't think this has any use for home network. my gigabit network from year 2000 is still plenty enough.
may be if you have 10 kids watching netflix in 4k simultaneously ?
Netflix says their 4K streams are 15 Mbps, so you'd need well over 50 kids to trouble 1 gig ethernet -- and you only need that for the upstream from their router to the modem (if one device isn't doing both)
A motivation for me to pose this question is a networking speed freak who believes 10G is NOT fast enough for his 4K TV on Netflix! His TV is a 58 inch juggernaut and thus, it needs more speed because it is a
bigger screen. Guy's like him are a gift to the marketing suits in marketing suites.
The only 'domesticated' use case for such bandwidth is a $10,000 MacPro video studio, with 8K video stored on a SAN/Raid array loaded with M2 EVO ssd modules. But outside of the Hollywood hills, there is little justification for this level of investment. Maybe in the near-instantaneous future world of the Metaverse 10G will be 'bufferingly' slow, but for now, even inside the enterprise, it's a too much speed for desktop users.
btw My
fastest outbound-upstream link is a mere 100Mbps on a 330Mbps FTTP link. When I started networking, 1Mbps over coax was regarded a top enterprise level speed - and was priced accordingly.