Gott in Himmel! Wouldn't it be easier to scratchbuild? ... When the mood strikes, consider it.
Heh, heh, I was surprised you didn't come back with this recurring thought sooner! I already had an answer prepared.
It's just different kinds of puzzles ... what I'm working on is kinda like a jigsaw puzzle ... someone took a pre-printed image, cut it into bits, and put it all together ... now, I'm taking it all apart, rearranging and redesigning some of the bits and putting it all BACK together again ... differently.
Now, that said, having all those starting bits does make it considerably less work than scratchbuilding from the ground up ... and, with all my many (very) slow-moving projects ... that is a very important expedient.
However ... your point has great merit ... I do want to build one of the little WW1 2-6-2T locos (several of which actually ran in West Virginia where I plan my fictional line) ... that might turn out to be a scratch-building project ... AFTER I finish the sammich shop and the repair shop ...
Meanwhile, this little beastie will give me something to run around on the tracks that pass by the repair shop (when we get that far) and give me a "feel" for building in 1/35 scale.
So, yeah, read you loud and clear! Good point ... scratchbuilding is one kind of puzzle, kitbashing is another ... doing the latter first and the former later. (That makes sense, doesn't it?) -- Dallas
PS -- We had a palpable earthquake here earlier today ... 5.9 centered in Virginia ... yeah, I lived in LA briefly and know that's a small one ... but really unusual to "feel" and earthquake here ... and heard it was felt all the way up into Canada!