If you're doing a basic project where it makes economic sense and are willing to teach yourself, it takes a $950 fusion splicer and about $300-400 of hand tools

If you're doing a basic project where it makes economic sense and are willing to teach yourself, it takes a $950 fusion splicer and about $300-400 of hand tools/supplies to terminate single mode these days. It's not super hard to learn how to do as an amateur if you can watch some youtube videos and look at reference documents. This particular model which can be found for 900-950 from China is popular for FTTH last mile work: https://toolboom.com/en/fusion-splicer-kit-signalfire-ai-9/ https://toolboom.com/en/fusion-splicer-kit-signalfire-ai-9/ It's not something I'd use to splice a very important cable carrying long haul DWDM circuits, but more than good enough for its purpose. As to whether a house needs fiber to each room? I'm not really sure, at the loop lengths involved, recent cat6 cable has a high chance of working successfully at 2.5GBaseT and 5GBaseT speeds, even if it doesn't qualify and test successfully for 10GBaseT. If you have a really high end 802.11ax 4x4 dual band AP with 2.5 or 5GBaseT interface on it and the switch to support it, in real world use it's unlikely you'll ever get much beyond 1000BaseT speeds to it with real wifi traffic.