Posted 07 April 2012 - 08:23 AM
From my woodworking experience, there is really no advantage to either if you allow them to rest for a few weeks in the shop. Kiln dried wood often is dried but gains water from the air. Air dried is about 10% MC or so at best but will lose water in a warm shop. The biggest problem I've seen with air dried is bugs and incorrect stacking for drying which can cause cracking and allow fungus to grow. These can be artsy in wood-turning. Maybe in handles too but I'm a duffer at knives.
I think it's mostly marketing. I've never seen an real evidence one is better than other when both are done right.
"Textbooks and Heaven only are Ideal; Solidity is an imperfect state."
John Updike - The Dance of Solids