When did double-shot keytops disappear?

[Sean 'Captain Napalm' Conner]

It was thus said that the Great Zane H. Healy once stated:
> 
> One of these days I'd like to find a really high quality USB 
> keyboard.  While I do like keys tops that stay intact, I'm more 
> concerned with with the keyboard not twisting easily, and keys that 
> feel good when you push on them.

  I got a keyboard/mouse PS/2 to USB connector, so I could use my PS/2
keyboard(s) on my Mac mini.  Works like a charm.

  -spc (Have yet to find any keyboard as good as a IBM AT or PS/2)