Not heard of them before. Recently just perusing the craigslist for a nearby "metro" area I saw a plasma for $200 that was very close to the model I already had (I have had a Samsung PN59D8000 for a while, this was the PN59D7000 for $200). It's in great shape, and altho I haven't pulled up the hours on it yet I'm betting it has less than mine. The seller was upgrading to 4k as many are now....believe he mentioned that the store indicated they wouldn't give him anything for trade in and maybe he'd find a plasma fan by selling it privately....for $200 I'm more than happy now to have a nicer display in the bedroom.
I did search for plasma on backmarket and they had nothing....it could stay that way, too as there aren't any plasmas in production for a while now. Good luck on your search!
