So I've had my S1 for seven years now and it's still going strong! Best flat screen I've ever purchased (so far).
That being said it is moving to the basement. Had my old (2004) Samsung 61" DLP down there and it finally crapped out (for the last time)...I'm not spending any more time or money fixing it so out it goes. So the Panny plasma will replace it in the basement and a Sony 65" XBR 4k will be replacing the Panny. It should arrive on Saturday. Of course I never thought about upgrading my AVR or DirectTV becasue of 4k....Doh! No rush to to that though since Direct TV really doesn't have much content yet and I can still get Netflix and Amazon (and YouTube) programming in 4k without needing to upgrade anything. I'm sure at some point I'll upgrade the Direct TV, AVR and add a 4k Blu-Ray player into the mix.
Hope it last as long as my Panny (which will still get regular use actually).
2004 61" DLP - Over 3k (new)
2010 65" Panny Plasma - 2.1k (new)
2016 65" Sony XBR930D 4k - 1.4k (open box)
I like the trend. Maybe next time I can get a 70"+ OLED for 1k.