there are a lot of german bicycle's in germany, just not to many "german" road bikes:
http://www.classicrendezvous.com/Germany/Germany.htm
the german road bikes ive seen are a little heavy, but still well built. i love german anything, they build things perfect. but road bikes is not their cup of tea.
and i think the 70's bike boom was all about french/italian and english bikes. a puch is even a rare find and i love thoose bikes!