10Gbe has decent adoption where it makes sense.
SSD is certainly cheap enough for home NAS now.
I also plan on adding a few 1080p@30fps security cameras and a centralised LAN host for all the video streams/backups. It will all add up quite quickly and I'm not even sure a home 10GbE setup will hold its own well in such conditions. I plan my buy an expensive switch/router combo with up to 320GbE bandwidth though, so it might work.
I believe 10GbE will be with us for as the de-facto prosumer setup for quite a while since 1.25GB/s is going to work for 99% of what's needed out there. (Although uncompressed 4k@60fps is almost 2GB/s...)