why canon 1d is so heavy but a good camera.

one time i droped my dads original canon 1d on the tile floor, i had the tripod quick mount screwed in the bottom and it landed right on the edge of the tripod mount with the lens pointed  up about 70% . the tripod mount cracked and the 28-200 zoom ripped out some of the plastic. i dont have anypictures but later i super carefully superglued the lens back toghether and it works now. the 1d is still going strong too. lens broke, tripod mount broke, 1d still working. thats what i call quality.