For one, I know they donated gabs of the things to charity at one point some years after their supposed destruction, as our local thrift store, Alabama Thrift Store, (Now America's Thrift), got a lot . . . That's where I got mine . . . In, I believe, 1990 . . . Saw them in Bud's (Wal-Mart consignment) during the same time frame, also . . . In boxes, too . . .
They weren't destroyed, they were just widely disseminated and sold over so many years that it had to have been a major loss . . .
As for ET as a game, I LOVE it . . . Much less confusing than Raiders, more complex than Adventure, and extremely playable comapred to SwordQuest . . .
And where's Indy? I've seen the rest of the eggs at various points . . . Even though I've never seen the Yar in Raiders . . .