Buying used

I just picked up a used Sigma 1.4x EX DG Tele Converter from B&H. I have been hesitant to buy anything sight unseen, but have done a lot of business with B&H. I felt confident of their customer service that if there was a problem they would take care of it. Well, got my package and all I can say is WOW. If it had been in the original packaging I would have sworn it was brand new.

I also picked up a Minolta IV F light meter from KEH and it too looked like brand new. I guess this was my lucky week!

I'm a very happy camper.

I have 8 Canon lenses (5 are "L"'s) 5 were bought second hand from a mix of friends and dealers. The ONLY problem I have ever had (a single piece of debris in the lens) was on a brand new one - which was replaced immediately without question.
The only time I buy new is when I am too impatient to wait for a good used one to come up!
P.S. I am very impatient!