AMD used to not segment ECC for non-consuner lines. It wasn't very popular with consumers. So I can't really blame them for not supporting it well. One way that is a good balance is to make it work but not officially supported on consumer lines. Then it's up to mb vendors and buyers to take advantage if worthwhile to them. That's enough to not cut into non-consuner lines or add support costs to consumer pricing.
One thing that could change this quick is if Apple used ECC. Others would follow to not seem inferior. I don't hear Apple users complain much at all about lack of ECC options.
I wasn't aware. Did some searching around and it mostly concerns the Mac Pro/Studio products in discussions. I was thinking more along the lines of regular MacBook Pros and such. Using ECC in products priced much higher doesn't change things elsewhere.
One thing that could change this quick is if Apple used ECC. Others would follow to not seem inferior. I don't hear Apple users complain much at all about lack of ECC options.