Let's not:
http://www.xbitlabs.com/news/cpu/display/20060807143609.html
Bear in mind that the PC market has shrunk considerably since '06, and that '06 was the last time that AMD had a competitive product (granted that ended in May/June '06).
The expected 4c, 8c, and possible 6c Zen products coming from AMD in . . . February? are roughly analogous to the x2 and FX chips aimed at the socket AM2 platform in '06.
I would expect AMD to sell maybe 10 million Zen units, tops. Probably less. And that includes China. AMD will not launch any "budget" options based on Zen until Q3 2017 at the earliest when they start selling Raven Ridge. You will absolutely not see $99 Summit Ridge among the initial product offering, period. There is not enough demand for that to make sense, and AMD doesn't have the marketing know-how to throw off their reputation as an also-ran anyway.
Bing bing bing! You win.
So are we looking at less than one million Zen units shipped this year? Sounds like you're saying just that . . .
All they have to do is charge less than Intel for +/-10% performance. Thanks to the HEDT line, that'll be easy for their 8c/16t offerings. And it's not like Intel's 4c/8t chips are cheap either.