I've been collecting Clacks because I really just love how they look. I'm really into visual aesthetics design type stuff, so I get a lot of enjoyment out of adding them to my boards for some very cool flair. Plus they're just damned fun to collect.
)
My guess is that they will probably drop in market value over time as people forget and lose interest in them, and/or CC or others introduce great caps (like Bro/KBK/Binge/Nubb/etc) that people will love. Oh, and 3D printing will be more prevalant such that people can make whatever designs they want. But that'll be ok for me, since that's not what I've been getting them for. They'll last forever, and as long there are boards being made that I can put them on, I'll be happy.
And just curious... does anyone know how many Mr. Fridays are floating around? From searching around, there were three (1x MX, 1x Topre, 1x BS) from CC's
Green Sale in Apr 2013, and another Topre prototype (with some entertaining drama for that one...) during 2013 as well? However, I found older posts where people were selling/trading them, so I'm guessing there was an initial run of earlier ones back in 2011 or so?