Who needs a classics frame? All the old guys who want a cushy ride and room for fenders while still being “pro” - or Portlanders who like to ride gravel and pretend that they are Belgian when it rains 
Seriously, though, the Specialized Roubaix and the Trek Domaine are strong additions to a product line-up. One-off “classics” bikes - less so. But a comfort performance road bike that sees classics duty under the pros gets a heck of a lot of street cred among the older, more casual roadie crowd.
Apologies for the thread deraillment.
You can fit fenders in a Roubaix? I think the Trek is a Prjct1 frame only, right?
The Z-series from Felt has been in the ProTour and used in cobbled races. Rather than make a custom Z-series frame with a lower head tube (Like T & S) for our professional road cyclists we make custom F-series with more tire clearance. How is that different?
I think you get more cred having Boonen and Fab on your frames or having the luck of Cervelo’s R3 with Stuey and JVS earning their bricks than anything else we could spew from the marketing “laterally/torsionally stiff & vertically compliant” page.
-SD