(Of course we can't restore it 1:1, but that quality is so valuable)
UPDATE: I was probably a bit, er, terse. I am really about restoring that quality, and yes, the world has moved on and is in many ways better, so we absolutely cannot "go back", and yes, it is absolutely not a trivial problem. In fact, I'd say it is very, very hard. But so worthwhile.
Components are: open source; languages, particularly for UI programming that make "open source" meaningful (giving people the ability to tinker); development/customization interfaces on devices (shame on you, Apple...and almost everyone else), languages and libraries/frameworks that collapse our incredible complexity stack for the many simple things we want to do, etc.