Cool Marcel, I did lots of that too, tagboard, and basically just found it cheaper and more kinda non linear I guess to etch my own boards.
I suppose when the builds sorted and works it's a easier way, the tagboards, but if it's work in progress all those places where two resistors and maybe a signal cap are all bent in and soldered... they're a bugger to change. That's all, each to his own bro!
One thing I might do, this time around, is actually shape copper foil over wooden molds and then glass it to make my own three dimensional curved and sculptural circuit boards...