Hey,
I'm quite happy that I discovered this forum! I have been typing on a G80 with MX-blacks the better part of my life (well, the part that had PCs, at least). Our first PC at home had a G80, and my first own PC also had it (G80s with MX-blacks are really common in Germany). So I have been using mechanical keyboards since a long time without knowing what the difference was.
I liked my keyboard so much (and I had a friend that always marveled at "how easy it is to type on that thing!") that I salvaged a couple of look-alike keyboard when I came across them in the trash a few years ago. But for reasons unknown to me back then, the keyboards just weren't the same thing. Stuck keys, wobbly spacebar that couldn't be actuated cleanly at the sides, and generally harder to type on - that wasn't what I remembered from "my keyboard". My friend, to whom I gave one of the keyboards, reported the same, and actually chucked his a short while later.
Over time I just accepted that my old keyboard was special, and that even new keyboards weren't up to my standards. At work, I always used Cherrys that looked like my old one in the hopes that I could find a keyboard that worked as before, but no avail. Long story short, recently I needed a new keyboard at work (coffee+elbow+keyboard=bad). Everything available at work was Microsoft or Logitech and had "Internet Explorer" buttons and **** like that, so I started to investigate.
I came across the Deskthority wiki, and from there it wasn't far to here. In the end I discovered that there's a huge difference between Cherry keyboards, and that all the models I used since my first keyboard where G81s with ML switches! I always assumed they are the same as they look the same as the G80s - a bit naive, but well.
Last time I visited my parents, I dug through the stash of things that accumulate and came up with 3 G80s, all with MX-blacks, one even still in the original box. And now I sit at work and typing is a pleasure again - easy to see at the ridiculous length of this post.
