Marginal value of a new I(thing) over the prior generation is a significant barrier once it's good enough. There is no looming improvement in UI experience except probably bad ones like the failed 3D push in TV's. I won't pay a premium for a foldable screen or curly edge bezel-less experience right now and I suspect most consumers are feeling much the same entering a trade war focussed global economy. I've got better things to do with my disposable income now.

Apple has a tonne of money. It can solve shareholder disappointment by using it to buy back stock or pay dividends or something.

I don't look to Tim Cook for innovation right now.

Declaration of Interest: disappointed touchbar MacBook owner