It's always something. Hackintosh's, Pi's, Custom Guitars, Guitar Pedals, Amp Mods...if it can be modified, tweaked, built, hacked, etc I tend to get obsessive....
I used a Corsair K90 with MX reds for a long time for everything and then when I got into CS:GO I did some research and got a Ducky One TKL with MX Silver (speeds) and since I really got into doing my research on mechanical keyboards a couple of weeks ago (my obsession with keyboards actually came by way of Thinkpad x220 keyboards and purchasing a new T25) I have purchased a few more...
The family has now grown to include a Model M13 with the trackpoint II in mind condition, a Coolermaster with Blues, a FC660C and a HHKB (both with Hasu controllers) as well as two Vortex Core's (one with blues and one with clears)...I'm trying to figure out what I really like and am looking at building my first keyboard soon.