
Joe Shapiro wrote:… I’ll probably get a used one for $400 rather than a new one for 900.
Given the lens housing is mostly plastic including some of the moving parts and given that the used lens has been around for many years potentially with either a great deal of use or misuse or worse possibly not used much and stored improperly and therefore subject to degradation, buying used from a stranger has its possible downside. Buying new can be a form of insurance. But you may buy used and receive an excellent copy. Inevitably in life we are guided by the words of Clint Eastwood as Dirty Harry (1971): “Do you feel lucky, punk?”