Thanks for all the answers. So, the reason these, even in group-buy, are so much more expensive than 99hk.biz, or wasdkeyboards, etc. is because these are higher quality, and double-shot instead of laser etched or printed, right? I don't see why people are asking for BLANK sets in the group buy though, when you can get 87-key blank set from wasdkeyboards for $40. Am I missing something crucial?
FWIW, I'm really liking my Filco TKL, although I think the keys feel just a bit "slick", and wonder if PBT is what I like. Y'all helped me figure out what my erstwhile perfect keyboard was: a Focus FK! I think these Cherry MX Blues are close enough though, and if I can just get the colors and Mac symbols right I can finally stop crying over the death of the Focus. :-)