I don't go to B&H/Adorama anymore for lenses because of their absurd price (IMO). Every lens I own (see signature) except the kit lens and sigma 105mm were bought used
I would much rather buy any lens without SDM (Would like a warranty for that
) used over new anyday considering the money I save. On the other hand I will never buy a body used for the same reason I will not buy an SDM lens used (WARRANTY... one of the main reasons I got the K-7 was because of its 3 yr. warranty).
(though I think I might buy the Pentax DA 40mm new considering how people here seem to think they can sell it for ~$10-20 less than the new price despite having it for months
)