In the home environment its typically going to be a couple of local devices having a high speed communication (NAS and client) and everything else is trickle bandwidth in comparison to a 10G connection. There is definitely a market for a switch with 8 10G ports but can only switch 20gbps total, maybe even just 10 gbps would be enough since almost all home users its one way or the other and not both. The flexibility however is that multiple clients can utilise that bandwidth.