worldpilot,
the point is that you don't NEED a JAA PPL.
A secondary point is that you loose your JAA PPL when you get the JAA CPL (In my JAA country anyways, they take the PPL and give you the CPL. - If this is any different in Germany, then this may be so).
However, M79s question was about the speed a PPL can be done at, and he correctly didn't mention that he wanted to do a JAA PPL. So I just elaborated on that.
(Free night qualification is part of the FAA PPL too.)
cheers, IP