I'm starting to suspect were hitting peak Apple. It feels like they might be pushing in app purchase through apple pay as their means for continued revenue growth rather than product innovation.
My personal favorites were the 2010-2012 mac pro. keyboard on first generation macbook pro with keys that were concave not flat. unibody on later macbook pro - the one with ports and sd card. I will say the iphone peaked for me at the iphone 8, which is relatively recent.