Hello...
I have purchased more used equipment than brand new over the years as means of being able to afford some of the more revered and renown products that other members have opined about, I've read about, or even have had an opportunity to listen to. Most of the time, finances permitting, this has led to me purchasing the new versions of the stuff I first bought used thinking the brand new versions were a safer bet. True in almost every instance.
People who drive the better automobiles tend to take care of them, same goes for higher end audio equipment.
Pass Labs M2 amplifier - used from Reno Hifi, which led me to buy a new X150.5 amp. In between the two I contacted support at Pass on the used and they could not have cared any less that I bought it used. Exceptionally courteous people. Customer for life...
Peachtree Audio: I purchased a factory refurb 220se integrated amp that arrived DOA. A brick. One email to support, three people responded within a few hours. They shipped a new unit with a return shipping label. In fact they practically fell over one another to keep me as a customer. They did.
Thiel Audio: contacted them regarding repairing the midranges on my used CS 3.5's. Super nice people who recognize that their legacy products will only keep bringing them new customers. (Though I haven't yet - can't give these speakers up!) Exceptional considering that these are about 20 years old.
