RE: kit built vs arf built
Another issue that just occurred to me is that planes are popular sellers for several reasons including marketing but more often the general appeal of the plane itself and last the generated appeal that is produced from the grass roots, the flight line chatter about what really flies nice and makes a good model.
Years ago, Hanger 9 produced a PT-19 120 size. A PT-19 has perhaps only moderate appeal as a plane and because the ARF suffered some bad landing gear strut failures, the word was out to leave it on the Hobby Shop shelves. Those like myself who rebuilt the landing gear struts discovered the plane to be an excellent flyer and great addition to the hanger. It is very aerobatic, and will even do fantastic lumcevaks.
My point is that sometimes ARFs simply hit the market and get only an initial run before some weak area turn on them, and they fail to become a staple because of poor construction when with a little building effort thrown into the effort, the ARF can become a reasonable or excellent addition to the hanger.