Problem is that most people nowadays seem to completely oversee why modular is so cool in the first place: Patching your own intricate processes. 

I started with a Doepfer system in 2004 and by now it has quite some modules from other manufacturers but the heart is still Doepfer. I built myself a few of the EuroSerge modules from Random Source and Elby because I have a thing for the crazy functionality Serge has but don't get me wrong Doepfer stuff is still the core of my system. And will always be I think :D

Ernst