On a random web search 1 year ago, I came across GeekHack.
At the time I was only looking for information about this so called "Colemak" layout and other alternative keyboard layouts. I already had 3 mechanical keyboards in my possession.
But a slow day at work, and my previous searches on mechanical keyboards brought me back to GeekHack to see what was available in the world of keyboards (and so I registered).
Ended up making my first post
7 days later.
First planned purchase due to GeekHack was a trackball. And being in Japan at the time, I decided I should
go to Akihabara to get one.
Really, the first keyboard I got via GeekHack was my Model F AT from trievalot (Australia) in February, but it was all downhill from there...
Minus "interesting" boards, my collection is nearly complete. Maybe then I'll get some time to write that Linux keyboard layout wiki I've been preparing for the last 8 months.
I even managed to get my hands on some boards I had on my long-term "I might be able to acquire" list: SMK Montereys, NEC Sliders and Beam Springs.
All in all, a fairly successful year.