Doepfer

Hello,
i dream of a big modular system. I know, if i start with one of the
basic-systems from doepfer the modular wall will grow and grow, and
that is exactly what i want.I allready own Schaltwerk and MAQ16/3 and
a Voyager. 
I would like also to make experiments with a vocoder, the trautonium
and the new 101 modules are looking also exciting.
So their  expansion systems looking good to me, but isn't it better to
order one by one and build in by myself? If i have the money i would
like to order them all at once, but this is too much...
Anyway, what do you think, should step in and make use also of these
Doepfer - Racks, or is maybe better to build up one own wooden rack
where space is available?
Stefan