Just to add for the seller, a ftf sale will limit the appeal to a lot of buyers, some of which will not travel the distance to make a purchase, that may impact on what the rifle sells for!
(Not saying ftf is not the best way to sell - just possibly not the best way to get the best price? However, to be honest about it, unless a rifle was very cheap, I personally wouldn't buy it sight unseen unless it was 'rare'.)
ASM