This one looks good enough: https://www.amazon.co.uk/Water-Resistant-VicTop-Mechanical-W...
IF you're concerned wrap it in some kind of cloth but for under 30 bucks it's not a major concern if you get a decent lifespand out of it. I'd say anything over 2 years is a huge win.
Be good to try something cheaper, though the single-height enter key would drive me CRAZY.
[0] http://www.keyboardco.com/keyboard/realforce-88ub-45g-key-bl.... £192!!
THIN became a much more important marketing tool than GOOD, or even FUNCTIONAL.
How do you explain the widespread perception that laptop keyboards used to be good but are now crappy?
> real rather than purely subjective benefit
Subjective benefits are real benefits.
I have Cherry Blues at home but wouldn't dare use them in an open-plan office environment - far too noisy.