And after Dani's post about recycling composites..... a thought....
How soon before we will see nearly-all-composite aircraft, such as the Boeing 797 and Airbus A390, being added to those artificial reefs?
After stripping out ... what? engines, electronics, landing gear, some pumps and generators and flying control actuators, burning the rest is hardly worth the trouble and the pollution and the landfill residue you end up with.
Oh, and what about a photo in seat 4B, with an FA bending over you... "coffee, tea, or me?" all in scuba gear?
Priceless, as they say.