I think folks should not bother trying to justify their keyboard preferences. You're right that it usually makes little difference in terms of productivity. On

I think folks should not bother trying to justify their keyboard preferences. You're right that it usually makes little difference in terms of productivity. On the other hand it can be very rewarding to choose something relatively unique for one's keyboard, or even make their own. The keyboard is kind of "intimate". It makes sense to make it yours. Not everything has to be utilitarian.