What about he Cherry G84-4100? I believe the Deck and that Cherry keyboard share the same mechanical system for the keys (crosspoint gold plated switches?).
No, they're not using the same keys. The G84-4100 uses ML switches and the Deck MX switches.
I'm currently writing on a G84-4100 and guess why I'm on this site - the keyboard is utter crap. They keys get stuck when not pressed on the centre, the cursor keys and the 'o' key are not reacting or bounce, the labels start to wear off - and all that after only about 4 months of use. And then, the tactile feedback of the keys doesn't match their activation, that is, you feel that the key is pressed but it isn't.
When I noticed that the Deck uses Cherry key switches and after this experience with 'modern' Cherry key switches (my clicky 15 year old G80-1000 is still working without any problems) I'm not so sure any more whether I should buy the Deck.
Maybe the MX switches are better but I don't really trust Cherry any more...