I'm glad to have found this community of people who are as picky about their keyboards as I am. At work, I'm known as "the guy who you can hear typing down the hall".
As for Matias Tactile Pro keyboards, I was rather annoyed to find out that my (original) Tactile Pro appeared to be a slightly-reworked Strong Man Enterprise Co. keyboard (with an almost-identical model on their website), and that the "We have the last batch of these switches!" was pure hype.
I owned two of them, but ended up selling them both. I now have three AT101Ws (or as I call them, "slabs"), a couple of AEKIIs with iMates, two Unicomp Customizer 104s, one Unicomp Spacesaver, one Dell-logoed Model M, 2-3 IBM-logoed Model Ms (one needing a SDL cable), and my latest acquisition, a Scorpius M10 that I'm slowly falling in love with.
However, my all-time favorite will remain the Model M and the Unicomp variants (104 keys is great because I can remap the Windows key to the Mac's Command key).