20 gig networking — even just a switch — is so expensive. 10 gig is already out of reach for 99% of the population, even network nerds. We’re just now in the past couple years seeing a standard of motherboards with 2.5gbps rj45. A lot of brand new nvme ssds can’t saturate 25gbps. There are just so many bottlenecks. I’m not saying I wish dearly those didn’t exist, but I know from my experience upgrading to 10 gig just how many there are.
https://store.ui.com/us/en/pro/category/all-switching/products/usw-pro-aggregation
Personally I am more excited for high speed networking for homelabs to come down in price. At this point in my life I don’t feel the need to access my network outside of my house at super high speeds. My 100mbps up is fine for when I’m out of the house, and 10gbps is more than I need when I’m home.