It's fun to add small, seamingly insignificant details. It also takes away the monotony of adding reef lines to the main sail...
The initial reason I started on YuanQing's kit was and still is the beauty of the POF build method. Although I do have a few misgivings about the kit, it's a fun to build kit, with a big plus being the possibility to customize one's build.
That's what I have to give SOS (amongst others) credit for: one can find numerous examples of beautiful customizations, with which you can feed your own imagination.
The scale is indeed a factor of importance; personally I am up to my limits, most of the time. I am baffled by those being able to build guns in 1:100 in great detail.
Although I have departed quite severely from the kit and it's drawings and instructions, I applaud YuanQing for developing this kit; I would buy it again in a heartbeat (and no, I don't have YQ-shares).
Most importantly though is the help I received on numerous occasions from fellow builders, when I was close to throwing the towel, either by, sometimes brutally, honest comments, but also with freely given advice and hardware. Without them I wouldn't have progressed this far.