What does 25/25 mean here? Gbps feels high for the home, but Mbps feels insanely expensive at that rate. (And also I didn't know they did fiber that slow, it's really only available in 1 Gbps and sometimes 500 Mbps here)
I don't see why 25Gbps symmetric would be so surprising. My current ISP Ziply Fiber offers 100Mbps, 300Mbps, 1Gbps, 2Gbps, 5Gbps, 10Gbps, and 50Gbps (all of them symmetric) in most of their service areas. I’m sure there are other providers with similar offerings, in some parts of the country. My previous ISP, Sonic.net, offers speeds up to 10Gbps. The reported price is pretty nice though.
Damn, that sounds nice, the fiber in Switzerland linked to in other comment.
Though the small cost is probably overshadowed by the large infra costs at home. So now you need a 25Gbp/s router, together with the rest of topology like qsfp+ switches, and then actually computers with >= 25Gb/s nics to make use of it. And then all the appropriate cooling for it. It’s starting to sound a lot like a home data center :P
You can get 25G switches/router for not much nowadays, check Mikrotik. Throw a couple Intel NICs from ebay in your machines' PCIe ports and really it's not that much of a deal.