When dealing with digital cameras and their related lenses/accessories, does warranty matter to you? Obviously there's a lot of used equipment being shuffled back and forth around here. I myself tend to buy almost nothing new; crumpling and picking up a brand new E-M5 might have been the first time. I am hoping that the money I save buying used comes out ahead of whatever I have to pay in repairs over time, and so far that's held. Are there particular categories that you much prefer to buy new than used because of warranty coverage? Have any of you benefited from having a warranty, or conversely regretted not having one? And lastly, do any of you take extended warranty coverage from companies like Squaretrade?