=P You might eventually end up getting both, and then some mods on each.
Tons of mods available (BKE Redux, silencing rings, lube, keycaps, HASU controller) and Topre keyboards are very easy to tinker on.
After having a RF87-silenced, 2 HHKBs, FC660C, Novatouch, I've found my ideal Topre keyboards+configs.
I definitely prefer the HHKB for the layout and the sound.
For gaming, I still do use my HHKB mostly unless it's a MMO that requires a lot of key-mappings. I've gotten rid of most of my RF and FC660C so I use my Novatouch if I need it. Though, I don't like the Novatouch and I'm waiting until I can get a silenced FC980C.