Update: Samsung rang and said they can "upgrade me to the E8000" for a small fee as it is out of my original manufacturer's warranty. When i asked how much are you talking, the guy said "i dont know, how much did you pay, where did you buy it from"? I said, "mate, all my details are on file including my receipt". I said " I bought it from David Jones in Doncaster and i paid $3600 for it". He said "oh, thats for that, can i get back to you with a price on Tuesday???? WTF?
Looks like you're finally getting somewhere. I think it's definitely worth upgrading to a E8000 from the C7000, since the new one doesn't have the 50Hz and Cinema Smooth black level bugs, so black level should be much improved for TV and Blu-ray. The only major feature missing is MJC - I don't like MJC personally, but some people do. Also the stand is a bit ugly, but I think it was in this thread or another one that it's mentioned it's possible to swap stands between the C7000 and the E8000.
With the 64" E8000 only around $3200 at the shops, hopefully they won't make you pay too much to upgrade, if anything at all.