yes it's about time, for example, that we had ECC ram capability in consumer-grade CPUs instead of having to pay double/triple for a XEON that doesn't even outperform (much).
I've got ECC (unregistered but still) in my "consumer grade" desktop[1] today, and have for a while; while many motherboards don't say whether they support ECC or not, some do and most AMD CPUs do as well.
Same reasons as ECC on a server, or for that matter, being able to do a lower cost home or small office server. The same rules apply on a desktop too though, just less risk of impact from corrupt data in memory for a consumer PC vs server. That said, most offices are using consumer grade CPUs and hardware too.
> What's the point of ECC RAM in consumer PCs?
Some people do very professional stuff with consumer PCs.