'WAF' is an old hifi-nerd expression ..
(It means that your nerdy expensive man-toys need a quality that makes your Wife accept their presence in 'your' home
In your experience, what is the 'WAF' of keyboard-collecting ?
(ignoring the obvious part of it that all women like : VALUE !)
My wife mocked my hobby, until she tried 3 different switches .
Now she is way more supportive about it and even has a decent keyboard herself !