On a related note, I think I figured out why we first start scratchbuilding.
I've been looking for a more modern coal mine for my layout, and just haven't been happy with anything I've found in a kit. Closest has been Alpine/Suyban's Wyoming, but it's made of metal, and seemingly to me not worth the trouble.
So, what's left ??? Yep, kitbashing and scratchbuilding.