I buy both. I have to admit, probably more used than new. I just look for what I want, if its in good shape, I go for it.
That being said, I have purchased 4 different hand guns online, sight unseen. Well, I saw pics of two of them. Anyway, 4 guns purchased without seeing them in my hot little hands first. Some say risky, I say I got good deals. I wont ever forget the SW 5906 I got for $215.00 in VG condition.