Yep, you beat me to this comment. I ran cat 5e through my house in 2009 and didn't bother with cat 6 because no cable runs would be that long. I assumed there would be 10Gb consumer switches by now, but I haven't seen any yet.

There are consumer 10gbit switches now, though they are on the pricy side at around $400. I bought 3 of them for our datacenter and 2 of them broke within 2 years, so I definitely regret buying consumer grade for our operations but professional gear was ridiculously expensive then. Upgraded to ubiquity now, hopefully it's more reliable, though I guess it's on the prosumer side if you ask your average net admin.

Well, when I say consumer, I mean unmanaged and less than $100 for 4-8 ports. I assumed that when gigabit over UTP was formalized in 1999, I wouldn't have to wait a quarter century to upgrade, but here we are. And to be fair, gigabit still basically does what I need.

The power usage on 10GB copper is nuts so most of the cheapest switches come with SPF cages.

I'm guessing it's less than the one or two dozen 60 watt bulbs I used to use to light my house. But yes, I've heard this for a long time - at my work we used twinax or fiber often for top of rack switching and that's one of the reasons I was told. Not sure if twinax is much less power intensive, but I do have a buddy who's using regular old coax in his house (moca or something like that) as a multi-gig backbone (still less than 10G) now and he likes it. Nowadays that I have more money, I would have run fiber alongside the cat 5/6 cable to future proof things, but I'm told terminating fiber is a technical challenge. I guess there's no free or even cheap lunch for 10G yet.

What I've heard is that 10Gb over copper struggles with heat and power consumption, though it is technically possible.

Yes, it’s 5E. I thought that cat5e maxes out at 2.5GBit. Honestly, none of my devices would benefit from 2.5Gbit in a significantly way. I run some cloud backups in the night and it’s ok if it takes extra 5 minutes.

You can try, depending on length 10Gbit are achievable.

I've been able to get 10G over a shoddy 100ft cat5e run. Give it a shot! It's fun!

Nope, it does not work at 10 Gbps; just 5Gbps for short runs (30m) and 2.5Gbps for 100m. I never tried for very short runs (1-5m), but it does not work for 50m at 10 Gbps.