Spielberg only made Crystal Skull because George kept begging and he eventually gave in. I’ve seen interviews and behind the scenes videos and you can tell Spielberg really didn’t want to be there.
Also, most people know what E.T. is. Its really quite difficult to find anyone (in person) that has ever even heard of Blade Runner. And most people I know only like Tron Legacy and don’t care for the original, which is a shame.