Indeed, but planes are quite repairable. I don't have a source for this (too lazy to look), but I briefly worked for boeing on a government contract to service C-17 aircraft for the air force. There was a story there of a C-17 landing on a dirt/sand field somewhere in the middle east (this is normal there) except in this case there was a small concrete barrier out in the middle of the field that wasn't seen. The front nose gear impacted the barrier and it torn the nose gear off along with a large chunk of the underside of the fuselage. As the front of the plane touched the ground, the hole scooped up sand and blasted a ton of it into the cargo bay. A crew was flown out there and they "fixed" it and it was flown back to the states.
Another popular instance was the Lockheed EP-3 flying the China coast in 2001 before impacting a Chinese fighter in the air and making a forced "rough" landing. It was taken apart and shipped back to the states where it was repaired in Waco Texas and continues to patrol the China coast to this day.
The Qantas A380 from Singapore to Sidney that had an uncontained engine failure was repaired and entered service again, at an estimated cost of about $150m, or about 1/3 of the price of a new one.
Another popular instance was the Lockheed EP-3 flying the China coast in 2001 before impacting a Chinese fighter in the air and making a forced "rough" landing. It was taken apart and shipped back to the states where it was repaired in Waco Texas and continues to patrol the China coast to this day.