Fair point about the prospect of tenkeyless keyboards.
I've already found ways to reduce my numpad usage, including installing Autohotkey to map en dash, em dash and bullet to ctrl+alt+-, ctrl+alt+shift+- and ctrl-shift-8 respectively, just as on the Macintosh, to complement the unmaintained but excellent
UK International keyboard layout. (This reduces my reliance on alt-numpad{nnnn} codes.)
And yes, tis true, there are various keyboards that would be interesting to try, including the ASK-6600 (sounds glorious, those ALPS switches) that are US layout only. However, switching layout repeatedly (between different machines) comes at a cost of perpetual annoyance, and the physical layouts are not compatible.
That said, I believe that I need to rule out a clicky at work, and likewise at home I think it would interfere with music too much as well as disturb people trying to sleep. Therefore, that rules out most keyboards anyway! Even non-clicky ALPS sound very loud, and I think my only options are brown Cherry or Topre, and for a blind purchase over the Internet, a RealForce is far too expensive. And I want absolutely nothing to do with eBay.
If I had decent soundproofing at home and work, allowing me to use the same keyswitch in both places without the twice-daily reacclimatisation process I have now just for scissor vs full travel rubber dome, and eBay wasn't made of scum, I'd be more interested in experimentation -- I'd love to play with what's out there and compare.
As it stands, I'm just trying to scrape up the courage to grab a FILCO brown Cherry 105-key in mid-Jan and hope for the best (esp. as I've got to pay for NKRO when I have no need for that).
I'm half wondering whether to get one blue and one brown, prove whether or not blue is as bad as people say (my work Dell keyboard is a complete rattletrap!!) and flog the other one here in the classifieds.
Sorry, another long ramble :-) I am a southerner with the soul of a penny-pinching northerner. I will spend money where needed, but keyboards are a matter of personal taste ...