I am with Shadco and Camilo here. My local roads are fairly smooth, so I have no need for an endurance road bike with active suspension like the Roubaix or Domane.
But even if I need suspension, I prefer the simplicity and replaceability of a Canyon / Ergon VCLS post rather than the Domane rear ISOspeed system.
My LBS became a Trek store a few years ago and the mechanics there are happy to work on my non-Trek bikes, so that is how I support them.