AMP pages take forever to load, I hate seeing a white screen > 1 second. with amp that's all I see on mobile. A white screen burning my eyeballs, seemingly forever. And then I snap out of it and hit back to escape from AMPs empty void.
I read in probably another HN thread that using an adblocker will actually slow down an AMP page - there's a hardcoded 3 second CSS delay which is cancelled if (via JS) it's detected the page is loaded.