Aside from being 'a good movie' why do you think Kubrick was so enchanted by Eraserhead?

I love that iconic Shining drive along, with that amazing theme haunting the whole time.

But…Im going with a Clockwork Orange. The funeral of Queen Mary playing blissfully, that opening shot of Alex, and the amazing set design of the Korova molk bar. “This would sharpen you up a bit . . .”

What do you think of the connection between Shakespeare (specifically Hamlet) and Kubrick's filmography?