I put cat6a in my last house and plan to in my current house "just in case". The cable isn't that much more expensive and nobody wants to do cabling again so why not.

But I'll keep using a gigabit switch because I have absolutely no idea what I'd use 10G for. It's crazy that gigabit was affordable for me as a student in the early 00s and between then and now we've gone from DVDs to 4K and it's still plenty fast enough. In fact, most people are happy with WiFi (not me, though).