Project Treble

Project Treble

I suppose that depends on your definition of "very reasonable" :-) . It looks like the 12-core 1920X launched at $800 and sold for over $600 for most of its life, until clearance sales when the next generation came out (which isn't a fair point of comparison). In 2013, Intel had Xeons with 8 cores for $900 and 10 cores for $1200 ("recommended customer price", don't know what they actually sold for). So maybe you can get twice as many cores per $ now, 5 years later, but only in a very specific market niche.

The Steam hardware survey says about 30% of Steam users have 2 cores, 60% have 4 cores, 7% have 6, 1.2% have 8, and about 0.4% have more than 8. That sounds like approximately nobody has bought Threadripper yet, so it's a part of the market that is basically irrelevant for normal users.