So I've not bought any used audio equipment before and I know its a common practice as people usually take very good care of their equipment. BUt I'm curious as to what everyone's thoughts are on warranty, specifically in this case, when it comes to subwoofers?

I've read that HSU products sold anywhere else other than their website and official retailers will not have the same warranty coverage. And I've seen these subs at AV sites, ebay, etc.

Is everyone just willing to forgo the warranty factor and take chances? Or are there ways around it? Gold amex with buyer protection? Paypal?

Feedback would be appreciated!