I think it would make an incredible study! It seems after a serious modeler arrives at a certain point in their lives, the motivation level decreases. Not as much time nowadays? More detractions (like responsibilities)?
I seem to make it through the most difficult assemblies with no problem, you know, interiors, fine detailing, complex painting..... but then when it's time to finish it out, my interest all but disappears. I have 7 pending at this time... all painted, decals applied, exterior finish completed, detailed, but the tires, props, canopies, antennas, etc etc, still in the box. On at least two of them, I'm not even real sure where their boxes are, but inside, when I look at them, I still say: "Next week's project", well, you know...
Frank