Honestly I end up using just a few, namely the poker 2 for LANs or the Rapid-I with the orange Cherry replicas. Then on my main desk the full sized code. The others get used every great once in awhile but not enough to justify them :X. As for a HHKB, I really didn't like the layout when I used one but I have still have thought about getting one. I know it's not the popular opinion but I also prefer to have backlighting most of the time because I work in my office at night and I spend a lot of time at LANs where its dark.