my point is if it's an original pax, the seller has already paid ploom for the device AND the warranty (more or less directly) in the first place. it doesn't matter how cheap they sell it afterwards, cause ploom must have already gotten what they wanted for it anyway. so, it's just not right (and wouldn't be legal in my homecountry germany!) to say, you won't get a warranty, because you've bought it on ebay. they punish their customers because some sellers(!) decided to give a damn what ploom says about selling their producst on ebay?! I mean you can't expect your customers to know about your retail conditions. that's just rediculous.
also selling a used one on ebay, shouldn't be a problem, because the seller also has paid for the warranty, already. they got their money for it, so they shouldn't care where I've got it from.
if the problem is caused by unauthorized copies, they just should add a fraud-resistant warranty card instead of going the "easy" way...
this doesn't make ploom a customer-friendly company imho.