A&C, My comment was directed about the hole in the wing skin. We looked at buying a SR22 at one point and what impressed me was the degree of structural strength in the design, not from just the spar but from the clever use of tapered layup techniques in the skin itself. From my own companies experience on other such damage (damage puncturing the skin in or near the root area of the wing, certainly in the first third of the wing) is often uneconomical to repair and a new panel is often the cheapesrt option.
You are right, its a question of economics for the insurance company.