There are times when salvaging "crash junk" is appropriate ...
Back in my early teen years, I was having some success flying combat - but couldn't do an outside loop from level flight to save my life. No problem with lazy eights, inverted, anything else, but there was just something instinctively wrong about pointing an airplane at the ground after spending precious time and money to get it in the air. The harder I tried to conquer that phobia, the bigger the pile of wrecked airplanes grew.
I finally assessed that pile one day, grabbed a Midwest Omega with an obliterated outboard wing, cut it off at the end of the center section planking and attached the outboard wing of a Sterling Ringmaster which had pretty much been totally destroyed except for that wing panel.
Then off to the flying field with that piece of scraps (and absolutely no emotional investment - it was just plain ugly).
Did outside loops all day, never could figure out what the problem was. That accumulation of junk served me very, very well.
Dennis