I must agree I have picked up several unfinished projects because the builder gave up for lack of enthusiasm, health, and assorted other reasons. I know I have several projects stalled because life gets in the way. It seems scale WWI are a common victims, the builder gets to looking close at the complexity at the task in hand and start to question their abilities or psych themselves out. I have been fortunate in when I have started questioning myself and just dove in I discovered it was as difficult as I thought. Fear of the unknown I guess.