Mostly agree, and just bought a ZFS server for home, 5 disks (RAIDz2) and 2xNVMe 2TB for root (256GB) and cache (the rest). GigE is pretty annoying in that it

Mostly agree, and just bought a ZFS server for home, 5 disks (RAIDz2) and 2xNVMe 2TB for root (256GB) and cache (the rest). GigE is pretty annoying in that it can't keep up with a single spinning disk (let alone 5), so large files (family videos, movies, system images, backups, etc) can take annoying long. Hell even wifi access points are becoming bottle necked by GigE. Fortunately 2.5Gbe looks like a reasonable compromise. Rarely a bottleneck and support is common on cable modems (motorola among others), access points, motherboards (pretty much anything newish from AMD/Intel), and even small SBCs if you run one as a firewall, router, or pi-hole. There are some switches and routers around and are often fanless till the port counts get high. Even quality 10G cards seem to run pretty hot, have huge heat sinks, and the sfp+ I've worked with tend to get pretty hot. Seems like there is a newer gen 10G chip, but they are rare and expensive but do run substantially cooler. Boards like the Intel quad port 10G X710-T4L (the cool one) vs the X710-T4 (the hot board) run at about half the power (14 vs 29 watts). I'm shopping around for the dual port version (X710-TSL) which peaks at 9.6 watts and uses 8.2 watts typically. No idea how other (non-intel) 10G boards do on power use.